DDC Veterinary provides fast, affordable avian biotech and DNA services for avian veterinarians, breeders, and owners worldwide. DNA sex determination services can be performed using a variety of sample types.
You may request sample collection kits to be sent to you free of charge using our
secure online order form. If you have any questions, please call us 1-800-625-0874 or email us at contact@vetdnacenter.com.
| Common Name | Latin Name |
| Abbott's Lesser Sulphur-crested Cockatoo | Cacatua sulphurea abbotti |
| `O`u | Psittirostra psittacea |
| Abdim's Stork | Ciconia abdimii |
| Abert's Towhee | Pipilo aberti |
| Abyssinian Eagle Owl | Bubo cinerascens |
| Abyssinian Ground Hornbill | Bucorvus abyssinicus |
| Abyssinian Lovebird | Agapornis taranta |
| Acadian Flycatcher | Empidonax virescens |
| Acorn Woodpecker | Melanerpes formicivorus |
| Adelaide Rosella | Platycercus adelaidae |
| Adelie Penguin | Pygoscelis adeliae |
| Adjutant Stork | Leptoptilos javanicus |
| African Crowned Eagle | Stephanoaetus coronatus |
| African Eagle Owl | Bubo africanus |
| African Fishing Eagle | Haliaeetus vocifer |
| African Golden Oriole | Oriolus auratus |
| African Green-Pigeon | Treron australis calva |
| African Jacana | Actophilornis africanus |
| African Penguin | Spheniscus demersus |
| African Pied Crow | Corvus albus |
| African Pygmy Falcon | Polihierax semitorquatus |
| African Ring-necked Parakeet | Psittacula krameri |
| African Shoebill | Balaeniceps rex |
| African Spoonbill | Platalea alba |
| African Spotted Eagle Owl | Bubo africanus |
| African Spotted Owl | Bubo africanus |
| African White-backed Vulture | Gyps bengalensis africanus |
| African White-backed Vulture | Gyps africanus |
| African Wood Owl | Strix leptogrammica |
| African Wood Owl | Strix woodfordii |
| Akiapola`au | Hemignathus munroi |
| Alder Flycatcher | Empidonax alnorum |
| Aleutian Tern | Sterna aleutica |
| Alexandra's Parakeet | Polytelis alexandrae |
| Alexandrine Parakeet | Psittacula eupatria |
| Allen's Hummingbird | Selasphorus sasin |
| Altamira Oriole | Icterus gularis |
| Alti Saker Falcon | Falco cherrug |
| Amazonian Umbrella Bird | Cephalopterus ornatus |
| Amboina King Parrot | Alisterus amboinensis amboinensis |
| American Avocet | Recurvirostra americana |
| American Bittern | Botaurus lentiginosus |
| American Black Duck | Anas rubripes |
| American Black Vulture | Coragyps atratus |
| American Coot | Fulica americana |
| American Crow | Corvus brachyrhynchos |
| American Dipper | Cinclus mexicanus |
| American Flamingo | Phoenicopterus ruber ruber |
| American Golden-Plover | Pluvialis dominica |
| American Goldfinch | Carduelis tristis |
| American Kestrel | Falco sparverius |
| American Kestrel | Falco sparverius |
| American Oystercatcher | Haematopus palliatus |
| American Pipit | Anthus rubescens |
| American Redstart | Setophaga ruticilla |
| American Robin | Turdus migratorius |
| American Tree Sparrow | Spizella arborea |
| American White Pelican | Pelecanus erythrorhynchos |
| American White Pelican | Pelecanus erythrorhynchos |
| American Wigeon | Anas americana |
| American Woodcock | Scolopax minor |
| Ancient Murrelet | Synthliboramphus antiquus |
| Andaman Island Parakeet | Psittacula eupatria magnirostris |
| Andean Guan | Penelope montagnii |
| Andean Parakeet | Bolborhynchus obygnesius |
| Andean Tinamou | Nothoprocta pentlandii |
| Anhinga | Anhinga anhinga |
| Anna's Hummingbird | Calypte anna |
| Antillean Nighthawk | Chordeiles gundlachii |
| Antillean Palm-Swift | Tachornis phoenicobia |
| Aplomado Falcon | Falco femoralis |
| Arctic Loon | Gavia arctica |
| Arctic Tern | Sterna paradisaea |
| Arctic Warbler | Phylloscopus borealis |
| Arfak Lory | Oreopsittacus arfaki arfaki |
| Argentina Conure | Pyrrhura molinae australis |
| Aru Red-sided Eclectus Parrot | Eclectus roratus aruensis |
| Aruba Conure | Aratinga pertinax arubensis |
| Ashey-faced Barn Owl | Tyto glaucops |
| Ash-throated Flycatcher | Myiarchus cinerascens |
| Ashy Storm-Petrel | Oceanodroma homochroa |
| Asian Brown Flycatcher | Muscicapa dauurica |
| Asian Fish Owl | Ketupa ketupa |
| Asian Wood Owl | Strix leptogrammica |
| Atlantic Puffin | Fratercula arctica arctica |
| Atlantic Puffin | Fratercula arctica |
| Attwater's greater Prairie-chicken | Tympanuchus cupido attwateri |
| Audubon's crested Caracara | Polyborus plancus audubonii |
| Audubon's Oriole | Icterus graduacauda |
| Audubon's Shearwater | Puffinus lherminieri |
| Augur Buzzard | Buteo rufofusceus augur |
| Austen's Laughing Thrush | Garrulax galbanus |
| Austral Conure | Enicognathus ferrugineus ferrugineus |
| Austral Parakeet | Enicognathus ferrugineus |
| Australasian Magpie | Gymnorhina tibicen |
| Australian Black Swan | Cygnus atratus |
| Australian King Parrot | Alisterus scapularis |
| Australian Magpie | Gymnorhina tibicen |
| Australian-crested Dove | Ocyphaps lophotes |
| Avocet | Recurvirostra avosetta |
| Aymara Parakeet | Psilopsiagon aymara |
| Aztec Conure | Aratinga nana astec |
| Aztec Thrush | Ridgwayia pinicola |
| Azure Gallinule | Porphyrula flavirostris |
| Azure-winged Magpie | Cyanopica cyana |
| Bachman's Sparrow | Aimophila aestivalis |
| Bachman's Warbler | Vermivora bachmanii |
| Bahama Mockingbird | Mimus gundlachii |
| Bahama Pintail | Anas bahamensis |
| Bahama Swallow | Tachycineta cyaneoviridis |
| Bahama Woodstar | Calliphlox evelynae |
| Baikal Teal | Anas formosa |
| Baird's Sandpiper | Calidris bairdii |
| Baird's Sparrow | Ammodramus bairdii |
| bald Eagle | Haliaeetus leucocephalus |
| Bald Eagle | Haliaeetus albicilla leucocephalus |
| Bald Eagle | Haliaeetus leucocephalus |
| Bald Ibis | Geronticus eremita calvus |
| Bali Mynah | Leucopsar rothschildi |
| Bali Starling | Leucopsar rothschildi |
| Baltimore Oriole | Icterus galbula |
| Bananaquit | Coereba flaveola |
| Band-bellied Owl | Pulsatrix melanota melanota |
| Banded Aracari | Pteroglossus torquatus pluricinctus |
| Band-rumped Storm-Petrel | Oceanodroma castro |
| Band-tailed Gull | Larus belcheri |
| Band-tailed Pigeon | Columba fasciata fasciata |
| Band-tailed Pigeon | Columba fasciata |
| Bank Mynah Bird | Acridotheres ginginianus |
| Bank Swallow | Riparia riparia |
| Barbary Falcon | Falco peregrinus peligrinoides |
| Bare-eyed Cockatoo | Cacatua sanguinea sanguinea |
| Bare-eyed Corella | Cacatua pastinator pastinator |
| Bare-eyed Ground-Dove | Metriopelia morenoi |
| Bare-eyed Pigeon | Columba corensis |
| Bare-faced Curassow | Crax rubra fasiolata |
| Bare-faced Go-away Bird | Corythaixoides personata personata |
| Bare-faced Ground-Dove | Metriopelia ceciliae |
| Bar-headed Goose | Anser indicus |
| Barn Owl | Tyto alba |
| Barn Owl | Tyto alba |
| Barn Swallow | Hirundo rustica |
| Barnacle Goose | Branta leucopsis |
| Barnacle Goose | Branta leucopsis |
| Barnard's Parakeet | Barnardius barnardi |
| Barraband Parakeet | Polytelis swainsonii |
| Barraband's Parrot | Pionopsitta barrabandi |
| Barred Cuckoo-Dove | Macropygia unchall |
| Barred Owl | Strix varia varia |
| Barred Owl | Strix varia |
| Barred Parakeet | Bolborhynchus lineola tigrinus |
| Barrow's Goldeneye | Bucephala islandica |
| Bar-tailed Godwit | Limosa lapponica |
| Bartletts Bleeding Heart Dove | Gallicolumba bartletti |
| Bay-breasted Warbler | Dendroica castanea |
| Bay-headed Tanager | Tangara gyrola |
| Bean Goose | Anser fabalis |
| Bearded Barbet | Lybius dubius dubius |
| Bearded Vulture | Guaetus barbatus |
| Bee Bee Parrot | Brotogeris jugularis |
| Belize Yellow-headed Amazon | Amazona oratrix belizensis |
| Bell Magpie | Gymnorhina tibicen |
| Bell's Vireo | Vireo bellii |
| Belted Kingfisher | Megaceryle alcyon |
| Belted Kingfisher | Ceryle alcyon |
| Bendire's Thrasher | Toxostoma bendirei |
| Bengal Eagle Owl | Bubo bubo bengalensis |
| Berlepsch's Conure | Pyrrhura melanura berlepschi |
| Bernier's Teal | Anas bernieri |
| Bernstein's Lory | Chalcopsitta atra bersteini |
| Berylline Hummingbird | Amazilia beryllina |
| Beryl-spangled Tanager | Tangara nigroviridis |
| Bewick's Wren | Thryomanes bewickii |
| Biak Red Lory | Eos histrio cyanogenia |
| Bicknell's Thrush | Catharus bicknelli |
| Bird of Paradise | Cicinnurus regius |
| Black Catbird | Melanoptila glabrirostris |
| Black Crake | Amaurornis flavirostris |
| Black Curassow | Crax rubra alector |
| Black Eagle | Aquila verreaux |
| Black Guillemot | Cepphus grylle |
| Black Guillemot | Cepphus grylle |
| Black Lory | Chalcopsitta atra atra |
| Black Noddy | Anous minutus |
| Black Oystercatcher | Haematopus bachmani |
| Black Parrot | Coracopsis nigra |
| Black Phoebe | Sayornis nigricans |
| Black Rail | Laterallus jamaicensis |
| Black Rosy-Finch | Leucosticte atrata |
| Black Scoter | Melanitta nigra |
| Black Skimmer | Rynchops niger |
| Black Sparrow Hawk | Accipiter melanoleucus |
| Black Stork | Ciconia nigra |
| Black Storm-Petrel | Oceanodroma melania |
| Black Swan | Cygnus atratus |
| Black Swift | Cypseloides niger |
| Black Tern | Chlidonias niger |
| Black Thrush | Turdus infuscatus |
| Black Turnstone | Arenaria melanocephala |
| Black Vulture | Aegypius monachus |
| Black Vulture | Coragyps atratus |
| Black Vulture | Coragyps atratus |
| Black-and-white Warbler | Mniotilta varia |
| Black-backed Magpie | Gymnorhina tibicen |
| Black-backed Wagtail | Motacilla lugens |
| Black-backed Woodpecker | Picoides arcticus |
| Black-Banded Owl | Strix huhula |
| Black-bellied Plover | Pluvialis squatarola |
| Black-bellied Whistling Duck | Dendrocygna autumnalis |
| Black-bellied Whistling-Duck | Dendrocygna autumnalis |
| Black-billed Amazon | Amazona agilis |
| Black-billed Cuckoo | Coccyzus erythropthalmus |
| Black-billed Magpie | Pica pica |
| Black-billed Magpie (American) | Pica hudsonia |
| Black-billed Magpie (Eurasian) | Pica pica |
| Black-billed Mountain Toucan | Andigena hypoglauca nigrirostris |
| Black-billed Touraco | Tauraco schuetti |
| Black-billed Wood-Dove | Turtur abyssinicus |
| Black-browed Albatross | Thalassarche melanophris |
| Blackburnian Warbler | Dendroica fusca |
| Black-capped Chickadee | Poecile atricapillus |
| Black-capped Conure | Pyrrhura rupicola rupicola |
| Black-capped Gnatcatcher | Polioptila nigriceps |
| Black-capped Lory | Lorius lory lory |
| Black-capped Petrel | Pterodroma hasitata |
| black-capped Vireo | Vireo atricapilla |
| Black-capped Vireo | Vireo atricapillus |
| Black-capped Waxbill | Krimhilda nonnula |
| Black-casqued Hornbill | Ceratogymna atrata |
| Black-cheeked Lovebird | Agapornis personata nigrigensis |
| Black-cheeked Waxbill | Estrilda erythronotos |
| Black-chested Buzzard-Eagle | Geranoaetus melanoleucus |
| Black-chinned Hummingbird | Archilochus alexandri |
| Black-chinned Sparrow | Spizella atrogularis |
| Black-collared Barbet | Lybius torquatus |
| Black-collared Lovebird | Agapornis swindernianus |
| Black-crowned Night Heron | Nycticorax nycticorax nycticorax |
| Black-crowned Night-Heron | Nycticorax nycticorax |
| Black-crowned Pitta | Pitta granatina venusta |
| Black-eared Parrot | Hapalopsittaca melanotis |
| Black-eared Parrotlet | Touit melanonotus |
| Black-faced Grassquit | Tiaris bicolor |
| Black-faced Lory | Trichoglossus haematodus intermedius |
| Black-faced Lovebird | Agapornis taranta |
| Black-faced Spoonbill | Platalea minor |
| Black-footed Albatross | Phoebastria nigripes |
| Black-footed Penguin | Spheniscus demersus |
| Black-fronted Piping Guan | Pipile jucutinga |
| Black-headed Caique | Pionites melanocephala melanocephala |
| Black-headed Grosbeak | Pheucticus melanocephalus |
| Black-headed Gull | Larus ridibundus |
| Black-headed Sibia | Heterophasia melanoleuca |
| Black-legged Kittiwake | Rissa tridactyla |
| Black-lored Parrot | Tanygnathus gramineus |
| Black-mandibled Toucan | Ramphastos ambiguus ambiguus |
| Black-masked Lovebird | Agapornis personata nigrigenis |
| Black-necked Aracari | Pteroglossus aracari |
| Black-necked Crane | Grus nigricollis |
| Black-necked Stilt | Himantopus mexicanus |
| Black-necked Stilt | Himantopus mexicanus |
| Black-necked Stork | Ephippiorhynchus asiaticus |
| Black-necked Swan | Cygnus melanocorypha |
| Blackpoll Warbler | Dendroica striata |
| Black-shouldered Aracari | Pteroglossus aracari aracari |
| Blacksmith Plover | Vanellus armatus |
| Black-tailed Conure | Pyrrhura melanura |
| Black-tailed Gnatcatcher | Polioptila melanura |
| Black-tailed Godwit | Limosa limosa |
| Black-tailed Gull | Larus crassirostris |
| Black-throated Blue Warbler | Dendroica caerulescens |
| Black-throated Gray Warbler | Dendroica nigrescens |
| Black-throated Green Warbler | Dendroica virens |
| Black-throated Laughing Thrush | Garrulax chinensis chinensis |
| Black-throated Magpie Jay | Calocitta formosa colliei |
| Black-throated Nun Finch | Lonchura kelaarti |
| Black-throated Sparrow | Amphispiza bilineata |
| Black-vented Oriole | Icterus wagleri |
| Black-vented Shearwater | Puffinus opisthomelas |
| Black-whiskered Vireo | Vireo altiloquus |
| Black-winged Ground-Dove | Metriopelia melanoptera |
| Black-winged Lory | Eos cyanogenia |
| Black-winged Lovebird | Agapornis taranta |
| Black-winged Parrot | Hapalopsittaca melanotis |
| Black-winged Stilt | Himantopus himantopus |
| Black-winged Stilt | Himantopus himantopus |
| Blaze-winged Conure | Pyrrhura devillei |
| Blood-eared Conure | Pyrrhura hoematotis |
| Blossom-headed Parakeet | Psittacula roseata |
| Blue & Gold Macaw | Ara ararauna |
| Blue Bird | Sialia sialis |
| Blue Bunting | Cyanocompsa parellina |
| Blue Grosbeak | Guiraca caerulea |
| Blue Grouse | Dendragapus obscurus |
| Blue Jay | Cyanocitta cristata |
| Blue Jay | Cyanocitta cristata |
| Blue Magpie | Erythrorhyncha urocissa |
| Blue Mockingbird | Melanotis caerulescens |
| Blue Moorhen | Gallinula chloropus |
| Blue Mountain Lory | Trichoglossus haematodus moluccanus |
| Blue Quaker Parrot | Myiopsitta monachus monachus |
| Blue Tit | Parus caeruleus |
| Blue Whistling Thrush | Myiophonus caeruleus caeruleus |
| Blue-backed Parrot | Tanygnathus sumatranus |
| Blue-bellied Roller | Coracias cyanogaster |
| Blue-bonnet | Northiella haematogaster |
| Blue-bonnet Parakeet | Psephotus haematogaster |
| Blue-breasted Kingfisher | Halcyon malimbica |
| Blue-cheeked Amazon | Amazona dufresniana dufresniana |
| Blue-cheeked Lory | Eos histrio cyanogenia |
| Blue-collared Parrot | Geoffroyus simplex |
| Blue-crowned Amazon | Amazona farinosa guatemalae |
| Blue-crowned Barbet | Megalaima armillaris armillaris |
| Blue-crowned Conure | Aratinga acuticaudata acuticaudata |
| Blue-crowned Hanging Parrot | Loriculus galgulus |
| Blue-crowned Lorikeet | Vini australis |
| Blue-crowned Motmot | Momotus momota |
| Blue-crowned Pigeon | Goura cristata |
| Blue-crowned Racquet-tail | Prioniturus discurus discurus |
| Blue-eared Lorikeet | Charmosyna placentis |
| Blue-eared Lory | Eos semilarvata |
| Blue-eared Pheasant | Crossoptilon auritum |
| Blue-eyed Cockatoo | Cacatua ophthalmica |
| Blue-faced Fig Parrot | Cyclopsitta diophthalma |
| Blue-faced Honeyeater | Entomyzon cyanotis |
| Blue-faced Parrot Finch | Erythrura tricolor tricolor |
| Blue-footed Booby | Sula nebouxii |
| Blue-fronted Amazon | Amazona aestiva aestiva |
| Blue-fronted Lorikeet | Charmosyna toxopei |
| Blue-fronted Parrotlet | Touit dilectissima |
| Blue-gray Gnatcatcher | Polioptila caerulea |
| Blue-Grey Tanager | Thraupis episcopus |
| Blue-headed Macaw | Ara couloni |
| Blue-headed Pionus | Pionus menstruus menstruus |
| Blue-headed Racquet-tail | Prioniturus platenae platenae |
| Blue-headed Rainbow Lory | Trichoglossus haematodus caeruleiceps |
| Blue-headed Vireo | Vireo solitarius |
| Blue-margined Parakeet | Brotogeris chrysopterus gustavi |
| Blue-masked Lovebird | Agapornis personata |
| Blue-naped Mousebird | Urocolius macrourus macrourus |
| Blue-naped Parrot | Tanygnathus lucionensis |
| Blue-necked Tanager | Tangara cyanicollis |
| Blue-rumped Parrot | Psittinus cyanurus |
| Blue-rumped Parrotlet | Forpus cyanopygius |
| Blue-spotted Wood-Dove | Turtur afer |
| Blue-streaked Lory | Eos reticulata |
| Blue-tailed Lory | Eos histrio |
| Blue-thighed Lory | Lorius tibialis |
| Bluethroat | Luscinia svecica |
| Blue-throated Barbet | Megalaima asiatica asiatica |
| Blue-throated Conure | Pyrrhura cruentata |
| Blue-throated Hummingbird | Lampornis clemenciae |
| Blue-throated Macaw | Ara glaucogularis |
| Blue-throated Piping Guan | Pipile pipile cumanensis |
| Blue-winged Conure | Pyrrhura picta |
| Blue-winged Grass Parakeet | Neophema chrysostoma chrysostoma |
| Blue-winged Leafbird | Chloropsis cochinchinensis |
| Blue-winged Minla | Minla cyanouroptera |
| Blue-winged Mountain Tanager | Anisognathus somptuosus |
| Blue-winged Parakeet | Psittacula columboides |
| Blue-winged Parrot | Neophema chrysostoma |
| Blue-winged Parrotlet | Forpus passerinus |
| Blue-winged Racquet-tail | Prioniturus discurus verticalis |
| Blue-winged Teal | Anas discors |
| Blue-winged Warbler | Vermivora pinus |
| Blyth's Parakeet | Psittacula caniceps |
| Blyth's Tragopan | Tragopan blythi |
| Boat-billed Heron | Cochlearius cochlearius |
| Boat-tailed Grackle | Quiscalus major |
| Bobolink | Dolichonyx oryzivorus |
| Bodin's Amazon | Amazona festiva bodini |
| Boehm's Barbet | Trachyphonus darnaudii |
| Bohemian Waxwing | Bombycilla garrulus |
| Bohemian Waxwing | Bombycilla garrulus |
| Bolivian Blue-fronted Amazon | Amazona aestiva xanthopteryx |
| Bonaire Conure | Aratinga pertinax xanthogenia |
| Bonaparte's Gull | Larus philadelphia |
| Bonellis Eagle | Hieraaetus fasciatus |
| Boobook Owl | Ninox novaeseelandiae |
| Boreal Chickadee | Poecile hudsonicus |
| Boreal Owl | Aegolius funereus |
| Boreal Owl | Aegolius funereus |
| Botteri's Sparrow | Aimophila botterii |
| Bourke's Parakeet | Neophema bourkii |
| Brambling | Fringilla montifringilla |
| Brandt's Cormorant | Phalacrocorax penicillatus |
| Brant | Branta bernicla |
| Brazilian Cardinal | Paroaria coronata |
| Brazilian Grey-breasted Conure | Pyrrhura leucotis griseipectus |
| Brent Goose | Branta bernicla |
| Brewer's Blackbird | Euphagus cyanocephalus |
| Brewer's Sparrow | Spizella breweri |
| Bridled Quail-Dove | Geotrygon mystacea |
| Bridled Tern | Sterna anaethetus |
| Bridled Titmouse | Baeolophus wollweberi |
| bridled White-eye | Zosterops conspicillatus conspicillatus |
| Bristle-thighed Curlew | Numenius tahitiensis |
| Broad-billed Hummingbird | Cynanthus latirostris |
| Broad-billed Sandpiper | Limicola falcinellus |
| Broad-tailed Hawk | Buteo jamaicensis |
| Broad-tailed Hummingbird | Selasphorus platycercus |
| Broad-winged Hawk | Buteo platypterus |
| Broad-winged Hawk | Buteo platypterus |
| Bronzed Cowbird | Molothrus aeneus |
| Bronze-winged Pionus | Pionus chalcopterus |
| Brotogeris Parakeet | Brotogeris |
| Brown Booby | Sula leucogaster |
| Brown Creeper | Certhia americana |
| Brown Fish Owl | Ketupa zeylonensis |
| Brown Jay | Cyanocorax morio |
| Brown Kiwi | Apterix australis |
| Brown Lory | Chalcopsitta atra duivenbodei |
| Brown Noddy | Anous stolidus |
| Brown Parrot | Poicephalus meyeri meyeri |
| brown Pelican | Pelecanus occidentalis |
| Brown Pelican | Pelecanus occidentalis occidentalis |
| Brown Pelican | Pelecanus occidentalis |
| Brown Shrike | Lanius cristatus |
| Brown Thrasher | Toxostoma rufum |
| Brown Violet-Ear | Colibri delphinae |
| Brown Wood Owl | Strix leptogrammica |
| Brown-backed Conure | Pyrrhura calliptera |
| Brown-backed Parrotlet | Touit melanonotus |
| Brown-breasted Conure | Pyrrhura calliptera |
| Brown-capped Rosy-Finch | Leucosticte australis |
| Brown-chested Martin | Progne tapera |
| Brown-crested Flycatcher | Myiarchus tyrannulus |
| Brown-eared Conure | Aratinga pertinax ocularis |
| Brown-headed Cowbird | Molothrus ater |
| Brown-headed Cowbird | Molothrus ater |
| Brown-headed Nuthatch | Sitta pusilla |
| Brown-headed Parrot | Poicephalus cryptoxanthus |
| Brown-hooded Parrot | Pionopsitta haematotis haematotis |
| Brown-necked Parrot | Poicephalus fuscicollis fuscicollis |
| Brown-necked Raven | Corvus ruficollic |
| Brown's Rosella | Platycercus venustus |
| Brown-throated Conure | Aratinga pertinax aeruginosa |
| Bruce's Green Pigeon | Treron waalia |
| Budgerigar | Melopsittacus undulatus |
| Budgerigar | Melopsittacus undulatus |
| Buffalo Weaver | |
| Buff-bellied Hummingbird | Amazilia yucatanensis |
| Buff-breasted Flycatcher | Empidonax fulvifrons |
| Buff-breasted Sandpiper | Tryngites subruficollis |
| Buff-collared Nightjar | Caprimulgus ridgwayi |
| Buff-crested Bustard | Eupodotis gindiana |
| Bufflehead | Bucephala albeola |
| Buffon's Macaw | Ara ambigua ambigua |
| Buffon's Touraco | Tauraco corythaix buffoni |
| Buffon's/Blue & Gold Macaw | Ara ambigua ambigua/ararauna |
| Buller's Shearwater | Puffinus bulleri |
| BullFinch | Aythya nyroca |
| Bullock's Oriole | Icterus bullockii |
| Bumblebee Hummingbird | Atthis heloisa |
| Burmese Turtle-Dove | Streptopelia orientalis |
| Burrowing Conure | Cyanoliseus patagonus |
| Burrowing Owl | Speotyto cunicularia |
| Burrowing Owl | Athene cunicularia |
| Buru Island King Parrot | Alisterus amboinensis buruensis |
| Buru Lorikeet | Charmosyna toxopei |
| Buru Racquet-tail | Prioniturus platurus mada |
| Buru Red Lory | Eos bornea cyanonothus |
| Bushtit | Psaltriparus minimus |
| Bushy-crested Jay | Cyanocorax melanocyaneus |
| Caatinga Conure | Aratinga pertinax cactorum |
| Cabot's Tragopan | Tragopan caboti |
| Cactus Conure | Aratinga cactorum |
| cactus ferruginous Pygmy-owl | Glaucidium brasilianum cactorum |
| Cactus Wren | Campylorhynchus brunneicapillus |
| Cactus Wren | Campylorhynchus brunneicapillus |
| Cahow | Pterodroma cahow |
| Caica Parrot | Pionopsitta caica |
| Calico Macaw | Ara militaris militaris/chloroptera |
| California clapper Rail | Rallus longirostris obsoletus |
| California Condor | Gymnogyps californianus |
| California Condor | Gymnogyps californianus |
| California Gnatcatcher | Polioptila californica |
| California Gull | Larus californicus |
| California least Tern | Sterna antillarum browni |
| California Quail | Callipepla californica |
| California Thrasher | Toxostoma redivivum |
| California Towhee | Pipilo crissalis |
| Calliope Hummingbird | Stellula calliope |
| Caloshua Macaw | Ara ararauna/Anodorhynchus hyacinthinus |
| Camelot Macaw | Ara macao/Ara macao/ararauna |
| Cameroon African Grey | Psittacus erithacus princeps |
| Canada Goose | Branta canadensis |
| Canada Warbler | Wilsonia canadensis |
| Canadian Goose | Branta canadensis |
| Canadian Great Horned Owl | Bubo virginianus |
| Canary-winged Parakeet | Brotogeris versicolurus chiriri |
| Caninde Macaw | Ara glaucogularis |
| Canvasback | Aythya valisineria |
| Canvas-backed Duck | Aythya valisineria |
| Canyon Towhee | Pipilo fuscus |
| Canyon Wren | Catherpes mexicanus |
| Cape Barren Goose | Cereopsis novaehollandiae |
| Cape May Warbler | Dendroica tigrina |
| Cape Parrot | Poicephalus robustus robustus |
| Cape Sable seaside Sparrow | Ammodramus maritimus mirabilis |
| Cardinal Lory | Chalcopsitta cardinalis |
| Caribbean Conure | Aratinga pertinax pertinax |
| Caribbean Elaenia | Elaenia martinica |
| Caribbean Flamingo | Phoenicopterus ruber ruber |
| Carmine Bee-eater | Merops nubicus nubicus |
| Carolina Chickadee | Poecile carolinensis |
| Carolina Parakeet | Conuropsis carolinensis |
| Carolina Wren | Thryothorus ludovicianus |
| Carribean Parakeet | Aratinga pertinax pertinax |
| Carriker's Conure | Aratinga wagleri minor |
| Carrion Crow | Corvus corone |
| Caspian Tern | Sterna caspia |
| Caspian Tern | Sterna caspia |
| Cassin's Auklet | Ptychoramphus aleuticus |
| Cassin's Finch | Carpodacus cassinii |
| Cassin's Kingbird | Tyrannus vociferans |
| Cassin's Sparrow | Aimophila cassinii |
| Cassin's Vireo | Vireo cassinii |
| Catalina Macaw | Ara macao/ararauna |
| Cattle Egret | Bubulcus ibis |
| Cattle Egret | Bubulcus ibis |
| Cave Swallow | Petrochelidon fulva |
| Cedar Waxwing | Bombycilla cedrorum |
| Celebes Hanging Parrot | Loriculus stigmatus stigmatus |
| Celebes Quail-Dove | Gallicolumba tristigmata |
| Celestial Parrotlet | Forpus coelestis |
| Ceram Lory | Eos semilarvata |
| Cerulean Warbler | Dendroica cerulea |
| Ceylon Hanging Parrot | Loriculus beryllinus beryllinus |
| Chaco Chacalaca | Ortalis canicollis |
| Chaffinch | Fringilla coelebs |
| Channel-billed Toucan | Ramphastos dicolorus vitellinus |
| Channel-billed Toucan | Ramphastos vitellinus vitellinus |
| Chapman's Conure | Aratinga mitrata alticola |
| Chapman's Mealy Amazon | Amazona farinosa chapmani |
| Chattering Lory | Lorius garrulus garrulus |
| Cherry-headed Conure | Aratinga erythrogenys |
| Cherry-headed/Mitred Conure | Aratinga erythrogenys/mitrata mitrata |
| Chestnut Manakin | Lonchura malacca |
| Chestnut-backed Chickadee | Poecile rufescens |
| Chestnut-backed Scimitar Babbler | Pomatorhinus montanus |
| Chestnut-backed Thrush | Zoothera dohertyi |
| Chestnut-bellied Imperial-Pigeon | Ducula brenchleyi |
| Chestnut-breasted Manakin | Lonchura castaneothorax |
| Chestnut-capped Thrush | Garrulax mitratus |
| Chestnut-collared Longspur | Calcarius ornatus |
| Chestnut-eared Aracari | Pteroglossus aracari castanotis |
| Chestnut-fronted Macaw | Ara severa severa |
| Chestnut-mandibled Toucan | Ramphastos swainsonii |
| Chestnut-sided Warbler | Dendroica pensylvanica |
| Chicken | Gallus gallus gallus |
| Chihuahuan Raven | Corvus cryptoleucus |
| Chilean Flamingo | Phoenicopterus ruber chilensis |
| Chilean Tinamou | Nothoprocta perdicaria perdicaria |
| Chimney Swift | Chaetura pelagica |
| Chinese Babax | Babax lanceolatus |
| Chinese Egret | Egretta eulophotes |
| Chinese Eurasian Eagle Owl | Bubo bubo swinhoei |
| Chinese Goose | Anser cygnoides |
| Chinstrap Penguin | Pygoscelis antarctica |
| Chipping Sparrow | Spizella passerina |
| Chiriqui Conure | Pyrrhura hoffmani gaudens |
| Choco Toucan | Ramphastos dicolorus brevis |
| Chopi Blackbird | Gnorimopsar chopi |
| Chuck-will's-widow | Caprimulgus carolinensis |
| Chukar | Alectoris chukar |
| Cinereous Finch | Piezorhina cinerea |
| Cinereous Vulture | Aegypius monachus |
| Cinnamon Hummingbird | Amazilia rutila |
| Cinnamon Teal | Anas cyanoptera |
| Cinnamon Teal | Anas cyanoptera |
| Citrine Wagtail | Motacilla citreola |
| Citron Throated Toucan | Ramphastos dicolorus citreolaemus |
| Citron-crested Cockatoo | Cacatua sulphurea citrino-cristata |
| Clapper Rail | Rallus longirostris |
| Clark's Grebe | Aechmophorus clarkii |
| Clark's Nutcracker | Nucifraga columbiana |
| Clay-colored Robin | Turdus grayi |
| Clay-colored Sparrow | Spizella pallida |
| Cliff Swallow | Petrochelidon pyrrhonota |
| Cloncurry Parakeet | Barnardius barnardi macgillivrayi |
| coastal California Gnatcatcher | Polioptila californica californica |
| Cobalt-winged Parakeet | Brotogeris chrysopterus cyanoptera |
| Cockatiel | Nymphicus hollandicus |
| Colima Warbler | Vermivora crissalis |
| Collared Aracari | Pteroglossus torquatus torquatus |
| Collared Finchbill | Spizixos semitorques |
| Collared Forest-Falcon | Micrastur semitorquatus |
| Collared Lory | Phigys solitarius |
| Collared Plover | Charadrius collaris |
| Collared Scops Owl | Otus bakkamoena lempiji |
| Collie's Magpie Jay | Calocitta formosa colliei |
| Common Babbler | Turdoides caudatus |
| Common Black-Hawk | Buteogallus anthracinus |
| Common Buzzard | Buteo buteo |
| Common Caracara | Polyborus plancus |
| Common Chaffinch | Fringilla coelebs |
| Common Chough | Pyrrhocorax pyrrhocorax |
| Common Crane | Grus grus |
| Common Crane | Grus grus |
| Common Cuckoo | Cuculus canorus |
| Common Eider | Somateria mollissima |
| Common Goldeneye | Bucephala clangula |
| Common Grackle | Quiscalus quiscula |
| Common Greenshank | Tringa nebularia |
| Common Ground-Dove | Columbina passerina |
| Common Hoopoe | Upupa epops epops |
| Common House-Martin | Delichon urbica |
| Common Loon | Gavia immer |
| Common Merganser | Mergus merganser |
| Common Moorhen | Gallinula chloropus |
| Common Murre | Uria aalge |
| Common Murre | Uria aalge |
| Common Nighthawk | Chordeiles minor |
| Common Parrotlet | Forpus passerinus |
| Common Pauraque | Nyctidromus albicollis |
| Common Peafowl | Pavo cristatus |
| Common Piping Guan | Pipile pipile pipile |
| Common Pochard | Aythya ferina |
| Common Poorwill | Phalaenoptilus nuttallii |
| Common Puffin | Fratercula artica artica |
| Common Raven | Corvus corax |
| Common Raven | Corvus corax |
| Common Redpoll | Carduelis flammea |
| Common Ringed Plover | Charadrius hiaticula |
| Common Rosefinch | Carpodacus erythrinus |
| Common Sandpiper | Actitis hypoleucos |
| Common Snipe | Gallinago gallinago |
| Common Starling | Sturnus vulgaris vulgaris |
| Common Swift | Apus apus |
| Common Tern | Sterna hirundo |
| Common Tern | Sterna hirundo |
| Common Trumpeter | Psophia crepitans crepitans |
| Common Wood-Pigeon | Columba palumbus |
| Common Yellowthroat | Geothlypis trichas |
| Congo African Grey | Psittacus erithacus erithacus |
| Connecticut Warbler | Oporornis agilis |
| Cook's Petrel | Pterodroma cookii |
| Cooper's Hawk | Accipiter cooperii |
| Cooper's Hawk | Accipiter cooperii |
| Coral-billed Pionus | Pionus sordidus corallinus |
| Cordilleran Conure | Aratinga wagleri frontata |
| Cordilleran Flycatcher | Empidonax occidentalis |
| Corn Crake | Crex crex |
| Corn Crake | Crex crex |
| Cornelia's Eclectus Parrot | Eclectus roratus cornelia |
| Cory's Shearwater | Calonectris diomedea |
| Costa Rica Mealy Amazon | Amazona farinosa virenticeps |
| Costa's Hummingbird | Calypte costae |
| Couch's Kingbird | Tyrannus couchii |
| Crane Hawk | Geranospiza caerulescens |
| Craveri's Murrelet | Synthliboramphus craveri |
| Crescent-chested Warbler | Parula superciliosa |
| Crested Auklet | Aethia cristatella |
| Crested Auklet | Aethia cristatella |
| Crested Caracara | Polyborus plancus |
| Crested Caracara | Caracara plancus |
| Crested Coua | Coua cristata |
| Crested Cuckoo-Dove | Reinwardtoena crassirostris |
| Crested Guan | Penelope obscura purpurascens |
| Crested Guineafowl | Guttera pucherani edouardi |
| Crested Guineafowl | Guttera puchetani |
| crested Honeycreeper | Palmeria dolei |
| Crested Myna | Acridotheres cristatellus |
| Crested Oropendola | Psarocolius decumanus |
| Crested Owl | Lophostrix cristata |
| Crested Screamer | Chauna torquata |
| Crested Tinamou | Eudromia elegans |
| Crimson Rosella | Platycercus elegans elegans |
| Crimson-bellied Conure | Pyrrhura rhodogaster |
| Crimson-breasted Shrike | Laniarius atrococcineus |
| Crimson-collared Grosbeak | Rhodothraupis celaeno |
| Crimson-fronted Conure | Aratinga leucophthalmus finschi |
| Crimson-winged Parakeet | Aprosmictus erythropterus |
| Crissal Thrasher | Toxostoma crissale |
| Crowned Crane | Balearica pavonina |
| Crowned Hornbill | Tockus alboterminatus |
| Crowned Plover | Vanellus coronatus |
| Cuban Amazon | Amazona leucocephala |
| Cuban Bullfinch | Melopyrrha nigra |
| Cuban Conure | Aratinga euops euops |
| Cuban Martin | Progne cryptoleuca |
| Curl-crested Aracari | Pteroglossus beauharnaesii |
| Curlew Sandpiper | Calidris ferruginea |
| Curve-billed Thrasher | Toxostoma curvirostre |
| Cuvier's Toucan | Ramphastos tucanus cuvieri |
| Dalmatian Pelican | Pelecanus crispus |
| Dark-eyed Junco | Junco hyemalis |
| Dark-throated Lory | Trichoglossus haematodus nigrogularis |
| D'Arnaud's Barbet | Trachyphonus darnaudii |
| Demerara Conure | Pyrrhura egregia egregia |
| Demoiselle Crane | Anthropoides virgo |
| Deplanche's Lorikeet | Trichoglossus haematodus deplanchii |
| Derbyan Parakeet | Psittacula derbiana |
| Desmarest's Fig Parrot | Psittaculirostris desmarestii |
| Diademed Amazon | Amazona autumnalis diadema |
| Diamond Dove | Geopelia cuneata |
| Diamond Sparrow | Emblema guttata |
| Dickcissel | Spiza americana |
| Dollar Bird | Eurystomus orientalis |
| Domestic Pigeon | Columba livia domestica |
| Dominican Amazon | Amazona arausiaca |
| Double Yellow-headed Amazon | Amazona oratrix oratrix |
| Double-crested Cormorant | Phalacrocorax auritus |
| Double-crested Cormorant | Phalacrocorax auritus |
| Double-eyed Fig Parrot | Cyclopsitta diophthalma |
| Double-striped Thick-knee | Burhinus bistriatus |
| Double-tooth Barbet | Lybius bidentatus |
| Dovekie | Alle alle |
| Downy Woodpecker | Picoides pubescens |
| Ducorps's Cockatoo | Cacatua ducorpsii |
| Dufresne's Amazon | Amazona brasiliensis dufresniana |
| Dumonti Mynah | Mino dumontii |
| Dunlin | Calidris alpina |
| Dunnock | Prunella modularis |
| Dusky Conure | Aratinga weddellii |
| Dusky Flycatcher | Empidonax oberholseri |
| Dusky Guan | Penelope obscura obscura |
| Dusky Lory | Pseudeos fuscata |
| Dusky Parrot | Pionus fuscus |
| Dusky Pionus | Pionus fuscus |
| Dusky Thrush | Turdus naumanni |
| Dusky Warbler | Phylloscopus fuscatus |
| Dusky-capped Flycatcher | Myiarchus tuberculifer |
| Dusky-headed Conure | Aratinga weddellii |
| Duyvenbode's Lory | Chalcopsitta duivenbodei duivenbodei |
| Eared Grebe | Podiceps nigricollis |
| Eared Trogon | Euptilotis neoxenus |
| East African Crowned Crane | Balearica pavonina regulorum |
| Eastern Bluebird | Sialia sialis |
| Eastern Kingbird | Tyrannus tyrannus |
| Eastern Long-billed Corella | Cacatua tenuirostris tenuirostris |
| Eastern Meadowlark | Sturnella magna |
| Eastern Phoebe | Sayornis phoebe |
| Eastern Rosella | Platycercus eximius eximius |
| Eastern Screech Owl | Otus asio asio |
| Eastern Screech-Owl | Otus asio |
| Eastern Towhee | Pipilo erythrophthalmus |
| Eastern Wood-Pewee | Contopus virens |
| Echo Parakeet | Psittacula eques |
| Eclectus Parrot | Eclectus roratus |
| Edward's Fig Parrot | Psittaculirostris edwardsii |
| Edward's Lorikeet | Trichoglossus haematodus capistratus |
| Egyptian Goose | Alopochen aegyptiacus |
| Egyptian Plover | |
| Egyptian Vulture | Neophron percnopterus |
| El Oro Conure | Pyrrhura melanura orcesi |
| Elegant Parrot | Neophema elegans |
| Elegant Pitta | Pitta elegans |
| Elegant Tern | Sterna elegans |
| Elegant Trogon | Trogon elegans |
| Elegant-crested Tinamou | Eudromia elegans |
| Eleonora Cockatoo | Cacatua galerita eleonora |
| Eleonora's Falcon | Falco eleonorae |
| Elf Owl | Micrathene whitneyi |
| Emerald Lorikeet | Neopsittacus pullicauda |
| Emerald Lory | Neopsittacus pullicauda |
| Emerald Starling | Lamprotornis iris |
| Emerald Toucanet | Aulacorhynchus prasinus |
| Emerald-spotted Wood-Dove | Turtur chalcospilos |
| Emma's Conure | Pyrrhura leucotis emma |
| Emperor Goose | Chen canagica |
| Emperor Penguin | Aptenodytes forsteri |
| Eskimo Curlew | Numenius borealis |
| Eskimo Curlew | Numenius borealis |
| Eurasian Blackbird | Turdus merula |
| Eurasian Bullfinch | Pyrrhula pyrrhula |
| Eurasian Buzzard | Buteo buteo buteo |
| Eurasian Collared-Dove | Streptopelia decaocto |
| Eurasian Coot | Fulica atra |
| Eurasian Curlew | Numenius arquata |
| Eurasian Curlew | Numenius arquata |
| Eurasian Dotterel | Charadrius morinellus |
| Eurasian Eagle Owl | Bubo bubo bubo |
| Eurasian Griffon | Gyps fulvus |
| Eurasian Hobby | Falco subbuteo |
| Eurasian Hoopoe | Upupa epops |
| Eurasian Jackdaw | Corvus monedula |
| Eurasian Jay | Garrulus glandarius |
| Eurasian Kestrel | Falco tinnunculus |
| Eurasian Kestrel | Falco tinnunculus |
| Eurasian Oystercatcher | Haematopus ostralegus |
| Eurasian Pygmy Owl | Glaucidium passerinum |
| Eurasian Scops Owl | Otus scops scops |
| Eurasian Siskin | Carduelis spinus |
| Eurasian Spoonbill | Platalea leucorodia leucorodia |
| Eurasian Tree Sparrow | Passer montanus |
| Eurasian Wigeon | Anas penelope |
| Eurasian Woodcock | Scolopax rusticola |
| Eurasian Wryneck | Jynx torquilla |
| European Black Vulture | Aegypius monachus |
| European Eagle Owl | Bubo bubo |
| European Flamingo | Phoenicopterus ruber roseus |
| European Gold Finch | Carduelis carduelis |
| European Golden-Plover | Pluvialis apricaria |
| European Goshawk | Accipiter gentilis gentilis |
| European Robin | Erithacus rubecula |
| European Roller | Coracias gariculus |
| European Scops Owl | Otus scops scops |
| European Sparrow Hawk | Accipiter nisus |
| European Starling | Sturnus vulgaris |
| European Stork | Ciconia ciconia |
| European Storm-Petrel | Hydrobates pelagicus |
| European Turtle-Dove | Streptopelia turtur |
| European Turtle-Dove | Streptopelia turtur |
| European Wood-Pigeon | Columba palumbas |
| Evening Grosbeak | Coccothraustes vespertinus |
| Everglade snail Kite | Rostrhamus sociabilis plumbeus |
| Eyebrowed Thrush | Turdus obscurus |
| Eyton's Tree Duck | Dendrocygna eytoni |
| Fairy Bluebird | Irena puella |
| Fairy Lorikeet | Charmosyna pulchella pulchella |
| Falcated Duck | Anas falcata |
| Fan-tailed Warbler | Euthlypis lachrymosa |
| Far Eastern Curlew | Numenius madagascariensis |
| Ferruginous Hawk | Buteo regalis |
| Ferruginous Hawk | Buteo regalis |
| Ferruginous Pygmy Owl | Glaucidium brasilianum |
| Ferruginous Pygmy-Owl | Glaucidium brasilianum |
| Festive Amazon | Amazona festiva festiva |
| Field Sparrow | Spizella pusilla |
| Fieldfare | Turdus pilaris |
| Fieldfare | Turdus pilaris |
| Fiery-shouldered Conure | Pyrrhura egregia |
| Finsch's Amazon | Amazona finschi finschi |
| Finsch's Conure | Aratinga finschi |
| Finsch's Parakeet | Psittacula finschii |
| Fire-tufted Barbet | Psilopogon pyrolophus |
| Fischer's Lovebird | Agapornis personata fischeri |
| Fischer's Touraco | Tauraco fischeri |
| Fish Crow | Corvus ossifragus |
| Fishing Owl | Scotopelia |
| Five-colored Munia | Lonchura quinticolor |
| Five-striped Sparrow | Aimophila quinquestriata |
| Flame Macaw | Ara macao/ararauna/Ara chloroptera |
| Flame-capped Conure | Aratinga auricapilla auricapilla |
| Flame-colored Tanager | Piranga bidentata |
| Flame-winged Conure | Pyrrhura calliptera |
| Flammulated Owl | Otus flammeolus |
| Flesh-footed Shearwater | Puffinus carneipes |
| Florida grasshopper Sparrow | Ammodramus savannarum floridanus |
| Florida scrub Jay | Aphelocoma coerulescens |
| Florida Scrub-Jay | Aphelocoma coerulescens |
| Fork-tailed Flycatcher | Tyrannus savana |
| Fork-tailed Storm-Petrel | Oceanodroma furcata |
| Fork-tailed Swift | Apus pacificus |
| Forsten's Lorikeet | Trichoglossus haematodus forsteni |
| Forster's Caracara | Phalcoboenus australis |
| Forster's Tern | Sterna forsteri |
| Forster's Tern | Sterna forsteri |
| Fox Sparrow | Passerella iliaca |
| Franklin's Gull | Larus pipixcan |
| Fulvous Whistling Duck | Dendrocygna bicolor |
| Fulvous Whistling-Duck | Dendrocygna bicolor |
| Gadwall | Anas strepera |
| Galah | Cacatua roseicapillus |
| Gambel's Quail | Callipepla gambelii |
| Gang Gang Cockatoo | Callocephalon fimbriatum |
| Garganey | Anas querquedula |
| Gentoo Penguin | Pygoscelis papua |
| Germaine's Peacock Pheasant | Polyplectron germaini |
| Giant Wood-Rail | Aramides ypecaha |
| Gila Woodpecker | Melanerpes uropygialis |
| Gilded Flicker | Colaptes chrysoides |
| Glaucous Gull | Larus hyperboreus |
| Glaucous-winged Gull | Larus glaucescens |
| Glossy Ibis | Plegadis falcinellus |
| Glossy Ibis | Plegadis falcinellus |
| Glossy Starling | Lamprotornis |
| Goffin's Cockatoo | Cacatua goffini |
| Gold Coast Touraco | Tauraco persa persa |
| Gold-backed Racquet-tail | Prioniturus platurus platurus |
| Golden Conure | Aratinga guarouba |
| Golden Eagle | Aquila chrysaetus |
| Golden Eagle | Aquila chrysaetos |
| Golden Mynah | Mino anais |
| Golden Pheasant | Chrysolophus pictus |
| Golden/Steppe Eagle | Aquila chrysaetus/nepalensis |
| Golden-breasted Starling | Cosmopsarus regius |
| Golden-capped Conure | Aratinga auricapilla auricapilla |
| Golden-cheeked Warbler | Dendroica chrysoparia |
| Golden-cheveroned Tanager | Thraupis ornata |
| Golden-crowned Conure | Aratinga aurea |
| Golden-crowned Kinglet | Regulus satrapa |
| Golden-crowned Sparrow | Zonotrichia atricapilla |
| Golden-crowned Warbler | Basileuterus culicivorus |
| Golden-fronted Conure | Aratinga auricapilla aurifrons |
| Golden-fronted Leafbird | Chloropsis aurifrons |
| Golden-fronted Woodpecker | Melanerpes aurifrons |
| Golden-headed Manakin | Pipra erythrocephala |
| Golden-heart Dove | Gallicolumba rufigula |
| Golden-mantled Rosella | Platycercus eximius cecilae |
| Golden-masked Tanager | Tangara larvata |
| Golden-naped Tanager | Tangara rufigenis |
| Golden-rumped Tinkerbird | Pogoniulus bilineatus |
| Golden-shouldered Parakeet | Psephotus pulcherrimus chrysopterygius |
| Golden-shouldered Parrot | Psephotus chrysopterygius |
| Golden-winged Parakeet | Brotogeris chrysopterus |
| Golden-winged Parrot | Psephotus pulcherrimus chrysopterygius |
| Golden-winged Warbler | Vermivora chrysoptera |
| Goldie's Lorikeet | Trichoglossus goldiei |
| Gold-mantled Racquet-tail | Prioniturus platurus platurus |
| Goliath Heron | Ardea sumatrana goliath |
| Gouldian Finch | Chloebia gouldiae |
| Graceful Pitta | Pitta granatina venusta |
| Grace's Warbler | Dendroica graciae |
| Grass Parakeet | Neophema |
| Grasshopper Sparrow | Ammodramus savannarum |
| Grassland Yellow Finch | Sicalis luteola |
| Gray Bunting | Emberiza variabilis |
| Gray Catbird | Dumetella carolinensis |
| Gray Flycatcher | Empidonax wrightii |
| Gray Go-away Bird | Corythaixoides Concolor |
| Gray Hawk | Asturina nitida |
| Gray Jay | Perisoreus canadensis |
| Gray Kingbird | Tyrannus dominicensis |
| Gray Partridge | Perdix perdix |
| Gray Silky-flycatcher | Ptilogonys cinereus |
| Gray Vireo | Vireo vicinior |
| Gray Wagtail | Motacilla cinerea |
| Gray-breasted Martin | Progne chalybea |
| Gray-cheeked Thrush | Catharus minimus |
| Gray-crowned Rosy-Finch | Leucosticte tephrocotis |
| Gray-crowned Yellowthroat | Geothlypis poliocephala |
| Gray-headed Chickadee | Poecile cinctus |
| Gray-spotted Flycatcher | Muscicapa griseisticta |
| Gray-tailed Tattler | Heteroscelus brevipes |
| Great Auk | Pinguinus impennis |
| Great Black Hawk | Buteogallus urubitinga |
| Great Black-backed Gull | Larus marinus |
| Great Blue Heron | Ardea cinerea herodius |
| Great Blue Heron | Ardea herodias |
| Great Blue Touraco | Corythaeola cristata |
| Great Cormorant | Phalacrocorax carbo |
| Great Crested Flycatcher | Myiarchus crinitus |
| Great Egret | Casmarochius albus |
| Great Egret | Ardea alba |
| Great Frigatebird | Fregata minor |
| Great Gray Owl | Strix nebulosa |
| Great Green Macaw | Ara ambigua |
| Great Grey Owl | Strix nebulosa |
| Great Horned Owl | Bubo virginianus occidentalis |
| Great Horned Owl | Bubo virginianus |
| Great Kiskadee | Pitangus sulphuratus |
| Great Knot | Calidris tenuirostris |
| Great Skua | Catharacta skua |
| Great Spotted Woodpecker | Dendrocopos major |
| Great Tinamou | Tinamus major |
| Great-billed Parrot | Tanygnathus megalorynchos |
| Greater Adjutant | Leptoptilos dubius dubius |
| Greater Blue-eared Glossy Starling | Lamprotornis chalybaeus |
| Greater Flamingo | Phoenicopterus ruber roseus |
| Greater Flamingo | Phoenicopterus ruber |
| Greater Hill Mynah | Gracula religiosa |
| Greater Indian Hill Mynah | Gracula religiosa |
| Greater Kestrel | Falco rupicoloides |
| Greater Pewee | Contopus pertinax |
| Greater Prairie-Chicken | Tympanuchus cupido |
| Greater Roadrunner | Geococcyx californianus |
| Greater Sage-Grouse | Centrocercus urophasianus |
| Greater Scaup | Aythya marila |
| Greater Shearwater | Puffinus gravis |
| Greater Sulphur C. Cockatoo | Cacatua sulphurea galerita |
| Greater Vasa Parrot | Coracopsis vasa |
| Greater White-fronted Goose | Anser albifrons |
| Greater Yellow Headed Amazon | Amazona oratrix magna |
| Greater Yellow-headed Vulture | Cathartes melambrotus |
| Greater Yellowlegs | Tringa melanoleuca |
| Great-tailed Grackle | Quiscalus mexicanus |
| Green & Gold Tanager | Tangara schrankii |
| Green Conure | Aratinga holochlora holochlora |
| Green Hanging Parrot | Loriculus pusillus exilis |
| Green Heron | Butorides virescens |
| Green Heron | Butorides virescens |
| Green Imperial-Pigeon | Ducula aenea |
| Green Jay | Xanthoura yncas |
| Green Jay | Cyanocorax yncas |
| Green Junglefowl | Gallus varius |
| Green Kingfisher | Chloroceryle americana |
| Green Magpie | Cissa chinensis |
| Green Quaker Parrot | Myiopsitta monachus monachus |
| Green Racquet-tail | Prioniturus discurus luconensis |
| Green Rosella | Platycercus caledonicus |
| Green Sandpiper | Tringa ochropus |
| Green Violet-ear | Colibri thalassinus |
| Green Wood Hoopoe | Phoeniculus purpureus |
| Green-breasted Mango | Anthracothorax prevostii |
| Green-cheeked Amazon | Amazona viridigenalis |
| Green-cheeked Conure | Pyrrhura molinae molinae |
| Green-cheeked/Yellow-sided Conure | Pyrrhura molinae molinae/hypoxantha |
| Green-crested Touraco | Tauraco persa persa |
| Green-fronted Hanging Parrot | Loriculus stigmatus tener |
| Greenish Elaenia | Myiopagis viridicata |
| Green-naped Lorikeet | Trichoglossus haematodus haematodus |
| Green-naped Pheasant Pigeon | Otidiphaps nobilis |
| Green-rumped Parrotlet | Forpus passerinus |
| Green-tailed Towhee | Pipilo chlorurus |
| Green-thighed Caique | Pionites leucogaster leucogaster |
| Green-winged King Parakeet | Alisterus chloropterus callopterus |
| Green-winged Macaw | Ara chloroptera |
| Green-winged Teal | Anas crecca |
| Green-winged Teal | Anas crecca |
| Grey Hornbill | Ocyceros birostris |
| Grey Partridge | Perdix perdix |
| Grey Peacock Pheasant | Polyplectron bicalcaratum |
| Grey-breasted Mountain Toucan | Andigena hypoglauca hypoglauca |
| Grey-cheeked Parakeet | Brotogeris pyrrhopterus |
| Grey-crowned Crane | Balearica pavonina regulorum |
| Grey-headed Kingfisher | Halcyon leucocephala |
| Grey-headed Lovebird | Agapornis cana |
| Grey-headed Parakeet | Psittacula finschii |
| Grey-Headed Parrot | Poicephalus fuscicollis suahelicus |
| Grey-headed Thrush | Turdus rubrocanus |
| Grey-hooded Parakeet | Psilopsiagon aymara |
| Grey-necked Wood-Rail | Aramides cajanea |
| Grey-sided Laughing Thrush | Garrulax caerulatus caerulatus |
| Grey-winged Trumpeter | Psophia crepitans crepitans |
| Griffin Vulture | Gyps fulvus |
| Groove-billed Ani | Crotophaga sulcirostris |
| Grosbeak Starling | Scissirostrum dubium |
| Guaiabero | Bolboppsittacus lunulatus |
| Guam Micronesian Kingfisher | Halcyon cinnamomina cinnamomina |
| Guam Rail | Rallus owstoni |
| Guam Rail | Rallus owstoni |
| Guatemalan Amazon | Amazona farinosa guatemalae |
| Guinea Touraco | Tauraco persa persa |
| Guira Cuckoo | Guira guira |
| Gull-billed Tern | Sterna nilotica |
| Gymnogene | Polyboroides typus |
| Gyr Falcon | Falco rusticolus |
| Gyrfalcon | Falco rusticolus |
| Hahn's Macaw | Diopsittaca nobilis nobilis |
| Hairy Woodpecker | Picoides villosus |
| Halfmoon Conure | Aratinga canicularis eburnirostrum |
| Halmahera Eclectus Parrot | Eclectus roratus vosmaeri |
| Hammer-headed Stork | Scopus umbretta |
| Hammerkop | Scopus umbretta |
| Hammond's Flycatcher | Empidonax hammondii |
| Hanging Parrot | Loriculus |
| Harlequin Duck | Histrionicus histrionicus |
| Harlequin Macaw | Ara chloroptera/ararauna |
| Harris Hawk | Parabuteo unicinctus |
| Harris's Hawk | Parabuteo unicinctus |
| Harris's Sparrow | Zonotrichia querula |
| Hartlaub's Duck | Pteronetta hartlaubii |
| Hartlaub's Touraco | Tauraco hartlaubi hartlaubi |
| Hawaii Akepa | Loxops coccineus coccineus |
| Hawaii Creeper | Oreomystis mana |
| Hawaiian common Moorhen | Gallinula chloropus sandvicensis |
| Hawaiian Coot | Fulica americana alai |
| Hawaiian Crow | Corvus hawaiiensis |
| Hawaiian dark-rumped Petrel | Pterodroma phaeopygia sandwichensis |
| Hawaiian Duck | Anas wyvilliana |
| Hawaiian Goose | Nesochen sandvicensis |
| Hawaiian Goose | Branta sandvicensis |
| Hawaiian Hawk | Buteo solitarius |
| Hawaiian Owl | Asio flammeus sandwicensis |
| Hawaiian Stilt | Himantopus mexicanus knudseni |
| Hawfinch | Coccothraustes coccothraustes |
| Hawk Owl | Surnia ulula |
| Hawk-headed Parrot | Deroptyus accipitrinus |
| Heermann's Gull | Larus heermanni |
| Helmeted Guineafowl | Numida meleagris |
| Henslow's Sparrow | Ammodramus henslowii |
| Hepatic Tanager | Piranga flava |
| Herald Petrel | Pterodroma arminjoniana |
| Hermit Thrush | Catharus guttatus |
| Hermit Warbler | Dendroica occidentalis |
| Herring Gull | Larus argentatus |
| Hill Mynah Bird | Gracula religiosa |
| Himalayan Snowcock | Tetraogallus himalayensis |
| Himalayan Vulture | Gyps himalayensis |
| Hispaniola Burrowing Owl | Speotyto cunicularia troglodytes |
| Hispaniolan Amazon | Amazona ventralis |
| Hispaniolan Burrowing Owl | Speotyto cunicularia |
| Hispaniolan Conure | Aratinga chloroptera |
| Hispaniolan Short-eared Owl | Asio flammeus |
| Hoary Redpoll | Carduelis hornemanni |
| Hoffmann's Conure | Pyrrhura hoffmanni |
| Homing Pigeon | |
| Honduras Yellow-headed Amazon | Amazona oratrix hondurensis |
| Hooded Crane | Grus monacha |
| Hooded Crow | Corvus corone |
| Hooded Merganser | Lophodytes cucullatus |
| Hooded Mountain Toucan | Andigena hypoglauca cucullata |
| Hooded Oriole | Icterus cucullatus |
| Hooded Parrot | Psephotus pulcherrimus dissimilis |
| Hooded Pitta | Pitta sordida sordida |
| Hooded Tinamou | Nothocercus nigrocapillus |
| Hooded Vulture | Necrosyrtes monachus |
| Hooded Warbler | Wilsonia citrina |
| Hook-billed Kite | Chondrohierax uncinatus |
| Hoopoe | Upupa epops |
| Horned Grebe | Podiceps auritus |
| Horned Guan | Oreophasis derbianus |
| Horned Lark | Eremophila alpestris |
| Horned Lark | Eremophila alpestris |
| Horned Parakeet | Eunymphicus cornutus |
| Horned Puffin | Fratercula arctica corniculata |
| Horned Puffin | Fratercula corniculata |
| Hottentot Teal | Anas hottentota |
| Houbara Bustard | Chlamydotis undulata |
| House Finch | Carpodacus mexicanus |
| House Sparrow | Passer domesticus |
| House Sparrow | Passer domesticus |
| House Wren | Troglodytes aedon |
| Hudsonian Godwit | Limosa haemastica |
| Humboldt Penguin | Spheniscus humboldti |
| Hutton's Vireo | Vireo huttoni |
| Hwamei | Garrulax canorus |
| Hyacinth Macaw | Anodorhynchus hyacinthinus |
| Hybrid Treeduck | |
| Iceland Gull | Larus glaucoides |
| Illiger's Macaw | Ara maracana |
| Imperial Amazon | Amazona imperialis |
| Imperial Eagle | Aquila heliaca |
| Inca Dove | Columbina inca |
| Inca Dove | Columbina inca |
| Inca Tern | Larosterna inca |
| Indian Eagle Owl | Bubo bengalensis |
| Indian Hanging Parrot | Loriculus beryllinus vernalis |
| Indian Hill Mynah | Gracula religiosa |
| Indian Jungle Mynah | Acridotheres fuscus |
| Indian Ringneck Parakeet | Psittacula krameri |
| Indian Roller | Coracias benghalensis |
| Indian Scops Owl | Otus bakkamoena |
| Indigo Bunting | Passerina cyanea |
| Indigo Macaw | Anodorhynchus glaucus leari |
| Indo-Chinese Green Peafowl | Pavo muticus imperator |
| Intermediate Guaiabero | Bolboppsittacus lunulatus intermedius |
| Intermediate Parakeet | Psittacula Intermedia |
| Inyo California Towhee | Pipilo crissalis eremophilus |
| Iris Lorikeet | Trichoglossus iris |
| Island Collared-Dove | Streptopelia bitorquata |
| Island Parrot | Tanygnathus megalorynchos |
| Island Scrub-Jay | Aphelocoma insularis |
| Ivory Gull | Pagophila eburnea |
| ivory-billed Woodpecker | Campephilus principalis |
| Ivory-billed Woodpecker | Campephilus principalis |
| Jabiru | Jabiru mycteria |
| Jabiru Stork | Jabiru mycteria |
| Jacdaw | Corvus monedula |
| Jack Snipe | Lymnocryptes minimus |
| Jacobin Pigeon | Columba livia jacobin |
| Jamaican Amazon | Amazona collaria |
| Jamaican Conure | Aratinga nana nana |
| Jandaya Conure | Aratinga jandaya |
| Japanese Quail | Coturnix coturnix japonica |
| Japanese Tumbler | Parus varius |
| Jardine's Parrot | Poicephalus gulielmi gulielmi |
| Java Green Peacock | Pavo muticus |
| Java Green Peafowl | Pavo muticus muticus |
| Javan Cochoa | Cochoa azurea |
| Javan Hill Mynah | |
| Javan Hill Partridge | Arborophila javanica |
| Javan Mynah | Acridotheres javanicus javanicus |
| Javan Whistling Duck | Dendrocygna javanica |
| Jen-Cap Conure | |
| Jenday Conure | Aratinga jandaya |
| Jen-Sun Conure | Aratinga solstitialis solstitialis/jandaya |
| Jobi Island Ground Dove | Gallicolumba jobiensis |
| Jobi Lory | Lorius lory jobiensis |
| Johnstone's Lorikeet | Trichoglossus johnstoniae |
| JosephineĆs Lory | Charmosyna josephinae |
| Jungle Nightjar | Caprimulgus indicus |
| Juniper Titmouse | Baeolophus griseus |
| Kagu | Rhynochetos jubatus |
| Kakariki | Cyanoramphus novaezelandia |
| Kauai `O`o | Moho braccatus |
| Kauai Akialoa | Hemignathus procerus |
| Kea | Nestor notabilis |
| Keel-billed Toucan | Ramphastos sulfuratus |
| Kentucky Warbler | Oporornis formosus |
| Kenya-crested Guineafowl | Guttera puchetani |
| Key West Quail-Dove | Geotrygon chrysia |
| Key West Quail-Dove | Geotrygon chrysia |
| Killdeer | Charadrius vociferus |
| King Eider | Somateria spectabilis |
| King Parrot | Alisterus |
| King Penguin | Aptenodytes patagonicus |
| King Rail | Rallus elegans |
| King Vulture | Sarcoramphus papa |
| Kirtland's Warbler | Dendroica kirtlandii |
| Kittlitz's Murrelet | Brachyramphus brevirostris |
| Knobbed Hornbill | Aceros cassidix |
| Knysna Touraco | Tauraco corythaix |
| Kookaburra | Dacelo novaguinae |
| Kori Bustard | Ardeotis kori |
| Kuhl's Cape Parrot | Poicephalus robustus fuscicollis |
| La Sagra's Flycatcher | Myiarchus sagrae |
| Labrador Duck | Camptorhynchus labradorius |
| Lace-necked Dove | Streptopelia chinensis |
| Ladder-backed Woodpecker | Picoides scalaris |
| Lady Ross's Touraco | Musophaga violacea rossae |
| Lafresnaye's Macaw | Ara severa castaneifrons |
| Lagger Falcon | Falco biarmicus jugger |
| Lanceolated Warbler | Locustella lanceolata |
| Lanner Falcon | Falco biarmicus biarmicus |
| Lapland Longspur | Calcarius lapponicus |
| Lapp Owl | Strix nebulosa lapponica |
| Lappet-faced Vulture | Torgos tracheliotus |
| Large Fig Parrot | Psittaculirostris desmarestii |
| large Kauai Thrush | Myadestes myadestinus |
| Large-billed Seed-Finch | Oryzoborus crassirostris |
| Large-billed Tern | Phaetusa simplex |
| Lark Bunting | Calamospiza melanocorys |
| Lark Sparrow | Chondestes grammacus |
| Laughing Gull | Larus atricilla |
| Laughing Kookaburra | Dacelo movaguimeae |
| Laughing Thrush | Garrulax |
| Lawrence's Goldfinch | Carduelis lawrencei |
| Layard's Parakeet | Psittacula calthropae |
| Laysan Albatross | Phoebastria immutabilis |
| Laysan Duck | Anas laysanensis |
| Laysan Finch | Telespyza cantans |
| Lazuli Bunting | Passerina amoena |
| Le Conte's Sparrow | Ammodramus leconteii |
| Le Conte's Thrasher | Toxostoma lecontei |
| Leach's Storm-Petrel | Oceanodroma leucorhoa |
| Leadbeater's Cockatoo | Cacatua leadbeateri |
| Lear's Macaw | Anodorhynchus glaucus leari |
| Least Auklet | Aethia pusilla |
| Least Auklet | Aethia pusilla |
| least Bell's Vireo | Vireo bellii pusillus |
| Least Bittern | Ixobrychus exilis |
| Least Flycatcher | Empidonax minimus |
| Least Grebe | Tachybaptus dominicus |
| Least Sandpiper | Calidris minutilla |
| Least Storm-Petrel | Oceanodroma microsoma |
| least Tern | Sterna antillarum |
| Least Tern | Sterna antillarum |
| Lemon Dove | Columba larvata |
| Lesser Black-backed Gull | Larus fuscus |
| Lesser Blue-eared Glossy Starling | Lamprotornis chloropterus |
| Lesser Eagle Owl | Otus gurneyi |
| Lesser Flamingo | Phoeniconaias minor |
| Lesser Frigatebird | Fregata ariel |
| Lesser Goldfinch | Carduelis psaltria |
| Lesser Jardine's Parrot | Poicephalus gulielmi |
| Lesser Kiskadee | Philohydor licta |
| Lesser Nighthawk | Chordeiles acutipennis |
| Lesser Patagonian Conure | Cyanoliseus patagonus patagonus |
| Lesser Prairie-Chicken | Tympanuchus pallidicinctus |
| Lesser Scaup | Aythya affinis |
| Lesser Snow Goose | Anser caerulescens caerulescens |
| Lesser Sulphur Crested Cockatoo | Cacatua sulphurea sulphurea |
| Lesser Vasa Parrot | Coracopsis nigra |
| Lesser White-fronted Amazon | Amazona albifrons nana |
| Lesser White-fronted Goose | Anser erythropus |
| Lesser White-fronted Goose | Anser erythropus |
| Lesser Yellow-headed Vulture | Cathartes burrovianus |
| Lesser Yellowlegs | Tringa flavipes |
| Lewis's Woodpecker | Melanerpes lewis |
| light-footed clapper Rail | Rallus longirostris levipes |
| Light-footed Clapper Rail | Rallus longirostris levipes |
| Lilac-breasted Roller | Coracias caudata |
| Lilac-collared Parrot | Geoffroyus simplex |
| Lilac-crowned Amazon | Amazona finschi |
| Lilacine Amazon | Amazona autumnalis lilacina |
| Lilford's Crane | Grus grus lilfordii |
| Limpkin | Aramus guarauna |
| Lincoln's Sparrow | Melospiza lincolnii |
| Lineolated Parakeet | Bolborhynchus lineola lineola |
| Little Blue Heron | Egretta caerulea |
| Little Bunting | Emberiza pusilla |
| Little Corella | Cacatua pastinator sanguinea |
| Little Curlew | Numenius minutus |
| Little Egret | Egretta garzetta garzetta |
| Little Egret | Egretta garzetta |
| Little Gull | Larus minutus |
| Little Owl | Athene noctua |
| Little Penguin | Eudyptula minor |
| Little Ringed Plover | Charadrius dubius |
| Little Shearwater | Puffinus assimilis |
| Little Stint | Calidris minuta |
| Little Tinamou | Crypturellus soui |
| Livingstone Touraco | Tauraco livingstonii |
| Loggerhead Kingbird | Tyrannus caudifasciatus |
| Loggerhead Shrike | Lanius ludovicianus |
| Long-billed Corella | Cacatua tenuirostris tenuirostris |
| Long-billed Curlew | Numenius americanus |
| Long-billed Dowitcher | Limnodromus scolopaceus |
| Long-billed Murrelet | Brachyramphus perdix |
| Long-billed Thrasher | Toxostoma longirostre |
| Long-crested Eagle | Lophaetus occipitalis |
| Long-eared Owl | Asio otus |
| Long-eared Owl | Asio otus |
| Long-tailed Broadbill | Psarisomus dalhousiae Psarisomus dalhousiae |
| Long-tailed Glossy Starling | Lamprotornis caudatus caudatus |
| Long-tailed Jaeger | Stercorarius longicaudus |
| Long-tailed Parakeet | Psittacula longicauda |
| Long-toed Stint | Calidris subminuta |
| Louisiana Heron | Egretta tricolor |
| Louisiana Waterthrush | Seiurus motacilla |
| Lovebird | Agapornis |
| Lucifer Hummingbird | Calothorax lucifer |
| Lucy's Warbler | Vermivora luciae |
| Luzon Bleeding Heart Dove | Gallicolumba luzonica |
| Luzon Racquet-tail | Prioniturus platenae montanus |
| Macaroni Penguin | Eudyptes chrysolophus |
| MacGillivray's Warbler | Oporornis tolmiei |
| Madagascar Lovebird | Agapornis cana cana |
| Madagascar Turtle-Dove | Columba picourata |
| Magdalena Conure | Pyrrhura melanura chapmani |
| Magellanic Owl | Bubo Magellanicus |
| Magellanic Penguin | Spheniscus demersus magellanicus |
| Magellan's Eagle Owl | Bubo virginianus nacurutu |
| Magnificent Frigatebird | Fregata magnificens |
| Magnificent Hummingbird | Eugenes fulgens |
| Magnolia Warbler | Dendroica magnolia |
| Magpie Goose | Anseranas semipalmata |
| Magpie Robin | Copsychus |
| Magpie Shrike | Corvinella melanoleuca |
| Maguari Stork | Ciconia maguari |
| Major Mitchell's Cockatoo | Cacatua leadbeateri |
| Malabar Parakeet | Psittacula columboides |
| Malay Eagle Owl | Bubo sumatranus |
| Malayan Longtail Parakeet | Psittacula longicauda |
| Malayan Peacock Pheasant | Polyplectron malacense malacense |
| Malaysian Fishing Owl | Ketupa ketupa |
| Malaysian Hanging Parrot | Loriculus galgulus |
| Malaysian Wood Owl | Strix leptogrammica |
| Malherbe's Parakeet | Cyanoramphus malherbi |
| Mallard | Anas platyrhnchos platyrhynchus |
| Mallard | Anas platyrhynchos |
| Mallee Ringneck Parakeet | Barnardius barnardi barnardi |
| Manchurian Crane | Grus japonensis |
| Mandarin Duck | Aix galericulata |
| Mangrove Cuckoo | Coccyzus minor |
| Manx Shearwater | Puffinus puffinus |
| Many-banded Aracari | Pteroglossus torquatus pluricinctus |
| Marabou Stork | Leptoptilos dubius crumeniferus |
| MarajĀ Amazon | Amazona ochrocephala xantholaema |
| MarajĀ Yellow-crowned Amazon | Amazona ochrocephala xantholaema |
| Marble Teal | Marmaronetta angustirostris |
| Marbled Godwit | Limosa fedoa |
| marbled Murrelet | Brachyramphus marmoratus marmoratus |
| Marbled Murrelet | Brachyramphus marmoratus |
| Mariana common Moorhen | Gallinula chloropus guami |
| Mariana Crow | Corvus kubaryi |
| Mariana gray Swiftlet | Aerodramus vanikorensis bartschi |
| Mariana Moorhen | Gallinula chloropus chloropus |
| Mariana's Fruit Dove | Ptilinopus roseicapilla |
| Maroon-bellied Conure | Pyrrhura frontalis frontalis |
| Maroonbreasted Crowned Pigeon | Goura scheepmakeri |
| Maroon-faced Conure | Pyrrhura picta leucotis |
| Maroon-fronted Parrot | Rhynchopsitta pachyrhyncha terrisi |
| Maroon-tailed Conure | Pyrrhura melanura melanura |
| Marsh Sandpiper | Tringa stagnatilis |
| Marsh Wren | Cistothorus palustris |
| Martial Eagle | Polemaetus bellicosus |
| Masai Red-headed Parrot | Poicephalus gulielmi massaicus |
| masked Bobwhite | Colinus virginianus ridgwayi |
| Masked Booby | Sula dactylatra |
| Masked Duck | Nomonyx dominicus |
| Masked Grass Finch | Poephila personata |
| Masked Lovebird | Agapornis personata |
| Masked Tityra | Tityra semifasciata |
| Massena's Lorikeet | Trichoglossus haematodus massena |
| Mathew's Cockatoo | Cacatua galerita fitzroyi |
| Mathew's Little Corella | Cacatua pastinator normantoni |
| Maui Akepa | Loxops coccineus ochraceus |
| Maui Parrotbill | Pseudonestor xanthophrys |
| Mauritius Fody | Foudia rubra |
| Mauritius Parakeet | Psittacula echo |
| Maximilian's Pionus | Pionus maximiliani |
| McCown's Longspur | Calcarius mccownii |
| McKay's Bunting | Plectrophenax hyperboreus |
| McKinder's Eagle Owl | Bubo capensis mackinderi |
| Mealy Amazon | Amazona farinosa farinosa |
| Mealy Rosella | Platycercus eximius adsciticus |
| Medium Ground Finch | Geospiza fortis |
| Medium Sulphur Crested Cockatoo | Cacatua galerita eleonora |
| Merlin | Falco columbarius |
| Merlin | Falco columbarius |
| Metallic Starling | Aplonis metallica |
| Meuller's Imperial-Pigeon | Ducula mullerii |
| Mew Gull | Larus canus |
| Mexican Chickadee | Poecile sclateri |
| Mexican Green Macaw | Ara militaris mexicana |
| Mexican Jay | Aphelocoma ultramarina |
| Mexican Jay | Aphelocoma ultramarina |
| Mexican Parrotlet | Forpus cyanopygius |
| Mexican Red-headed Amazon | Amazona viridigenalis |
| Mexican spotted Owl | Strix occidentalis lucida |
| Mexican Striped Owl | Rhinoptynx clamator |
| Meyer's Lorikeet | Trichoglossus flavoviridis meyeri |
| Meyer's Parrot | Poicephalus meyeri meyeri |
| Micronesian Megapode | Megapodius laperouse |
| Middendorff's Grasshopper-Warbler | Locustella ochotensis |
| Mikado Pheasant | Syrmaticus mikado |
| Mili-ffons Macaw | Ara militaris militaris/ambigua ambigua |
| Mili-gold Macaw | Ara militaris militaris/ararauna |
| Military Macaw | Ara militaris militaris |
| Milky Eagle Owl | Bubo lacteus |
| Mindanao Bleeding Heart Dove | Gallicolumba luzonica criniger |
| Mindanao Guaiabero | Bolboppsittacus lunulatus mindanensis |
| Mindanao Racquet-tail | Prioniturus platenae warerstradti |
| Miritiba Pearly Conure | Pyrrhura perlata coerulescens |
| Mississippi Kite | Ictinia mississippiensis |
| Mississippi sandhill Crane | Grus canadensis pulla |
| Mistle Thrush | Turdus viscivorus |
| Mitchell's Lorikeet | Trichoglossus haematodus mitchellii |
| Mitred Conure | Aratinga mitrata mitrata |
| Molokai Creeper | Paroreomyza flammea |
| Molokai Thrush | Myadestes lanaiensis rutha |
| Moluccan Cockatoo | Cacatua moluccensis |
| Moluccan Hanging Parrot | Loriculus stigmatus amabilis |
| Moluccan Lory | Eos bornea bornea |
| Moluccan Parrot | Tanygnathus megalorynchos |
| Moluccan Red Lory | Eos bornea |
| Monagas White-eared Conure | Pyrrhura leucotis auricularis |
| Mongolian Plover | Charadrius mongolus |
| Monk Parakeet | Myiopsitta monachus |
| Monk Parakeet | Myiopsitta monachus |
| Montezuma Oropendola | Gymnostinops montezuma montezuma |
| Montezuma Quail | Cyrtonyx montezumae |
| Moszkowski's Green-winged King Parrot | Alisterus chloropterus moszkowskii |
| Mottled Duck | Anas fulvigula |
| Mottled Owl | Strix virgata |
| Mottled Owl | Ciccaba virgata |
| Mottled Petrel | Pterodroma inexpectata |
| Mount Apo Lorikeet | Tricoglossus johnstoniae |
| Mount Goliath Lorikeet | Charmosyna papou goliathina |
| Mountain Bamboo Partridge | Bambusicola fytchii |
| Mountain Bluebird | Sialia currucoides |
| Mountain Chickadee | Poecile gambeli |
| Mountain Parakeet | Psilopsiagon aurifrons aurifrons |
| Mountain Peacock Pheasant | Polyplectron inopinatum |
| Mountain Plover | Charadrius montanus |
| Mountain Plover | Charadrius montanus |
| Mountain Quail | Oreortyx pictus |
| Mountain Quail | Oreortyx pictus |
| Mountain Racquet-tail | Prioniturus platenae montanus |
| Mountain Witch-Dove | Geotrygon versicolor |
| Mourning Dove | Zenaida macroura |
| Mourning Dove | Zenaida macroura |
| Mourning Warbler | Oporornis philadelphia |
| Moustached Parakeet | Psittacula alexandri |
| Mugimaki Flycatcher | Ficedula mugimaki |
| Mulga Parrot | Psephotus varius |
| Muller's Parrot | Tanygnathus sumatranus |
| Murphy's Petrel | Pterodroma ultima |
| Muscovy Duck | Cairina moschata |
| Musk Lorikeet | Glossopsitta concinna |
| Musk Parrot | Prosopeia |
| Musschenbroek's Lorikeet | Neopsittacus musschenbroekii |
| Mute Swan | Cygnus olor |
| Mute Swan | Cygnus olor |
| Nanday Conure | Nandayus nenday |
| Nan-Sun Conure | Nandayus nenday/Aratinga solstitialis solstitialis |
| Narcissus Flycatcher | Ficedula narcissina |
| Nashville Warbler | Vermivora ruficapilla |
| Nelson's Sharp-tailed Sparrow | Ammodramus nelsoni |
| Nene Goose | Branta sandvicensis |
| Neotropic Cormorant | Phalacrocorax brasilianus |
| Neumann's Pearly Conure | Pyrrhura perlata anerythra |
| New Caledonian Parakeet | Cyanoramphus saisseti |
| Newell's Townsend's Shearwater | Puffinus auricularis newelli |
| Newton's Parakeet | Psittacula exsul |
| Niam Niam Parrot | Poicephalus meyeri crassus |
| Nicobar Parakeet | Psittacula caniceps |
| Nicobar Pigeon | Caloenas nicobarica |
| Night Parrot | Pezoporus occidentalis |
| nightingale reed Warbler | Acrocephalus luscinia |
| Nihoa Finch | Telespyza ultima |
| Nihoa Millerbird | Acrocephalus familiaris kingi |
| Noble's Macaw | Diopsittaca nobilis cumanensis |
| Nocturnal Curassow | Nothocrax urumutum |
| North American Ruddy Duck | Oxyura jamaicensis jamaicensis |
| northern aplomado Falcon | Falco femoralis septentrionalis |
| Northern Beardless-Tyrannulet | Camptostoma imberbe |
| Northern Bobwhite | Colinus virginianus |
| Northern Cardinal | Cardinalis cardinalis |
| Northern Eagle Owl | Bubo bubo bubo |
| Northern Flicker | Colaptes auratus |
| Northern Fulmar | Fulmarus glacialis |
| Northern Gannet | Morus bassanus |
| Northern Goshawk | Accipiter gentilis |
| Northern Goshawk | Accipiter gentilis |
| Northern Harrier | Circus cyaneus |
| Northern Hawk Owl | Surnia ulula |
| Northern Hawk Owl | Surnia ulula |
| Northern Jacana | Jacana spinosa |
| Northern Lapwing | Vanellus vanellus |
| Northern Mockingbird | Mimus polyglottos |
| Northern Parula | Parula americana |
| Northern Pied Hornbill | Anthracoceros albirostris |
| Northern Pintail | Anas acuta |
| Northern Pygmy-Owl | Glaucidium gnoma |
| Northern Rosella | Platycercus venustus |
| Northern Rough-winged Swallow | Stelgidopteryx serripennis |
| Northern Saw-whet Owl | Aegolius acadicus |
| Northern Shoveler | Anas clypeata |
| Northern Shrike | Lanius excubitor |
| northern spotted Owl | Strix occidentalis caurina |
| Northern Waterthrush | Seiurus noveboracensis |
| Northern Waterthrush | Seiurus noveboracensis |
| Northern Wheatear | Oenanthe oenanthe |
| Northwestern Crow | Corvus caurinus |
| Nubian Vulture | Torgos tracheliotus |
| Nukupu`u | Hemignathus lucidus |
| Nuthatch | Sitta europea |
| Nuttall's Woodpecker | Picoides nuttallii |
| Nutting's Flycatcher | Myiarchus nuttingi |
| Nyasa Lovebird | Agapornis personata lilianae |
| Oahu Creeper | Paroreomyza maculata |
| Oahu Elepaio | Chasiempis sandwichensis ibidis |
| Oak Titmouse | Baeolophus inornatus |
| Obi Violet-necked Lory | Eos squamata obiensis |
| Ochre-marked Conure | Pyrrhura cruentata |
| Oldsquaw | Clangula hyemalis |
| Oliva Pigeon | Columba arquatrix |
| Olive Sparrow | Arremonops rufivirgatus |
| Olive Warbler | Peucedramus taeniatus |
| Olive-backed Pipit | Anthus hodgsoni |
| Olive-shouldered Parrot | Aprosmictus jonquillaceus jonquillaceus |
| Olive-sided Flycatcher | Contopus cooperi |
| Olive-throated Conure | Aratinga nana nana |
| Opal-rumped Tanager | Tangara velia |
| Orange-bellied Fruit Dove | Ptilinopus iozonus |
| Orange-bellied Leafbird | Chloropsis hardwickii |
| Orange-bellied Parrot | Poicephalus senegalus mesotypus |
| Orange-breasted Fig Parrot | Cyclopsitta gulielmitertii |
| Orange-breasted Green-Pigeon | Treron bicincta |
| Orange-breasted Parakeet | Neophema chrysostoma chrysogaster |
| Orange-chinned Parakeet | Brotogeris jugularis jugularis |
| Orange-crowned Parrot | Poicephalus gulielmi fantiensis |
| Orange-crowned Warbler | Vermivora celata |
| Orange-fronted Conure | Aratinga canicularis |
| Orange-fronted Hanging Parrot | Loriculus stigmatus aurantiifrons |
| Orange-fronted Leafbird | Chloropsis hardwickii |
| Orange-fronted Parakeet | Aratinga aurea canicularis |
| Orange-winged Amazon | Amazona amazonica |
| Orchard Oriole | Icterus spurius |
| Oriental Cuckoo | Cuculus saturatus |
| Oriental Greenfinch | Carduelis sinica |
| Oriental Pratincole | Glareola maldivarum |
| Oriental Scops Owl | Otus sunia |
| Oriental Scops-Owl | Otus sunia |
| Oriental Stork | Ciconia ciconia boyciana |
| Oriental Turtle-Dove | Streptopelia orientalis |
| Oriole Warbler | Hypergerus atriceps |
| Ornate Hawk Eagle | Spizaetus ornatus |
| Ornate Lorikeet | Trichoglossus ornatus |
| Ornate Lory | Trichoglossus ornatus |
| Osculated Toucan | Ramphastos osculans |
| Osprey | Pandion haliaetus |
| Osprey | Pandion haliaetus |
| Ouvea Parakeet | Eunymphicus uvaeensis |
| Ovenbird | Seiurus aurocapillus |
| Owl Finch | Poephila taeniopygia Bichenovii |
| Oystercatcher | Haematopus ostralegus |
| Pacific Black-tailed Conure | Pyrrhura melanura pacifica |
| Pacific Conure | Aratinga holochlora strenua |
| Pacific Golden-Plover | Pluvialis fulva |
| Pacific Loon | Gavia pacifica |
| Pacific Parrotlet | Forpus coelestis |
| Pacific-slope Flycatcher | Empidonax difficilis |
| Paint-billed Crake | Neocrex erythrops |
| Painted Bunting | Passerina ciris |
| Painted Conure | Pyrrhura picta picta |
| Painted Redstart | Myioborus pictus |
| Painted Stork | Mycteria leucocephala |
| Palawan Peacock Pheasant | Polyplectron emphanum |
| Palawan Racquet-tail | Prioniturus platenae platenae |
| Pale-headed Lorikeet | Trichoglossus haematodus caeruleiceps |
| Pale-headed Rosella | Platycercus adscitus palliceps |
| Pale-legged Hornero | Furnarius leucopus |
| Paler Blue-headed Pionus | Pionus menstruus rubragularis |
| Palila | Loxioides bailleui |
| Pallas's Bunting | Emberiza pallasi |
| Pallid Scops Owl | Otus brucei |
| Pallied Caique | Pionites melanocephala pallida |
| Palm Cockatoo | Probosciger aterrimus |
| Palm Warbler | Dendroica palmarum |
| Palm-nut Vulture | Gypohierax angolensis |
| Panama Amazon | Amazona ochrocephala panamensis |
| Papuan Hanging Parrot | Loriculus stigmatus aurantiifrons |
| Papuan Mountain-Pigeon | Gymnophaps albertisii |
| Paradise Finch | Amadina erythrocephala |
| Paradise Parrot | Psephotus pulcherrimus pulcherrimus |
| Paradise Tanager | Tanagara chilensis |
| Parakeet Auklet | Cyclorrhynchus psittacula |
| Parakeet Auklet | Aethia psittacula |
| Parasitic Jaeger | Stercorarius parasiticus |
| Parvipes Amazon | Amazona auropalliata parvipes |
| Parvipes yellow-naped Amazon | Amazona ochrocephala parvipes |
| Passenger Pigeon | Ectopistes migratorius |
| Patagonian Conure | Cyanoliseus patagonus |
| Pavonine Quetzel | Pharomachrus pavoninus |
| Peach-faced Lovebird | Agapornis roseicollis |
| Peach-fronted Conure | Aratinga aurea aurea |
| Peacock | Afropavo congensis |
| Peacock Pheasant | Polyplectron |
| Peales Falcon | Falco peregrinus |
| Pearl Spotted Owlett | Glaucidium passerinum perlutum |
| Pearl-headed Silverbill | Lonchura griseicapilla |
| Pearly Conure | Pyrrhura perlata perlata |
| Pechora Pipit | Anthus gustavi |
| Pectoral Sandpiper | Calidris melanotos |
| Pekin Robin | Leiothrix lutea |
| Pelagic Cormorant | Phalacrocorax pelagicus |
| Pel's Fishing Owl | Scotopelia peli |
| Pennant Rosella | Platycercus elegans |
| Peregrine Falcon | Falco peregrinus peregrinus |
| Peregrine Falcon | Falco peregrinus |
| Perfect Lorikeet | Trichoglossus euteles |
| Peruvian Pigeon | Columba oenops |
| Peruvian Thick-knee | Burhinus superciliaris |
| Pesquet's Parrot | Psittrichas fulgidus |
| Petz's Conure | Aratinga canicularis eburnirostrum |
| Phainopepla | Phainopepla nitens |
| Pharaoh Eagle Owl | Bubo bubo ascalaphus |
| Pheasant Pigeon | Otidiphaps nobilis |
| Philadelphia Vireo | Vireo philadelphicus |
| Philippine Blue-naped Parrot | Tanygnathus lucionensis |
| Philippine Cockatoo | Cacatua haematuropygia |
| Philippine Eagle Owl | Bubo phillippensis |
| Philippine Hanging Parrot | Loriculus philippensis |
| Picazuro Pigeon | Columba picazuro |
| Pied Avocet | Recurvirostra avosetta |
| Pied Crow | Corvus albus |
| Pied Hornbill | Tockus fasciatus |
| Pied Imperial-Pigeon | Ducula bicolor |
| Pied-billed Grebe | Podilymbus podiceps |
| Pigeon Guillemot | Cepphus columba |
| Pigeon Guillemot | Cepphus columba |
| Pileated Parakeet | Purpureicephalus spurius |
| Pileated Parrot | Pionopsitta pileata |
| Pileated Woodpecker | Dryocopus pileatus |
| Pine Bunting | Emberiza leucocephalos |
| Pine Grosbeak | Pinicola enucleator |
| Pine Siskin | Carduelis pinus |
| Pine Warbler | Dendroica pinus |
| Pink Pigeon | Columba mayeri |
| Pink-backed Pelican | Pelecanus rufescens |
| Pink-footed Goose | Anser brachyrhynchus |
| Pink-footed Shearwater | Puffinus creatopus |
| Pink-necked Fruit Dove | Ptiltnopus cinctus porphyreus |
| Pin-tailed Snipe | Gallinago stenura |
| Pinyon Jay | Gymnorhinus cyanocephalus |
| Pionus | Pionus |
| piping Plover | Charadrius melodus |
| Piping Plover | Charadrius melodus |
| Plain Chachalaca | Ortalis vetula |
| Plain Parakeet | Brotogeris tirica |
| Plain-capped Starthroat | Heliomaster constantii |
| Plumbeous Vireo | Vireo plumbeus |
| Plumed Guineafowl | Guttera plumifera |
| Plum-headed Parakeet | Psittacula cyanocephala |
| Plush-capped Jay | Cyancorax chrysops dickeyi |
| Plush-crested Jay | Cyancorax chrysops dickeyi |
| Po`ouli | Melamprosops phaeosoma |
| Polytelis Parakeet | Polytelis |
| Pomarine Jaeger | Stercorarius pomarinus |
| Pope Cardinal | Paroaria dominicana |
| Port Lincoln Parakeet | Barnardius zonarius |
| Prairie Falcon | Falco mexicanus |
| Prairie Falcon | Falco mexicanus |
| Prairie Warbler | Dendroica discolor |
| Primrose-cheeked Amazon | Amazona autumnalis autumnalis |
| Princess of Wales Parakeet | Polytelis alexandrae |
| Prothonotary Warbler | Protonotaria citrea |
| Pucherani Guineafowl | Guttera pucherani |
| Puerto Rican Amazon | Amazona vittata |
| Puerto Rican broad-winged Hawk | Buteo platypterus brunnescens |
| Puerto Rican Nightjar | Caprimulgus noctitherus |
| Puerto Rican Parrot | Amazona vittata |
| Puerto Rican plain Pigeon | Columba inornata wetmorei |
| Puerto Rican sharp-shinned Hawk | Accipiter striatus venator |
| Puna Ibis | Plegadis ridgwayi |
| Puna Teal | Anas puna |
| Purple Finch | Carpodacus purpureus |
| Purple Gallinule | Porphyrio martinicus martinicus |
| Purple Gallinule | Porphyrula martinica |
| Purple Glossy Starling | Lamprotornis purpureus |
| Purple Martin | Progne subis |
| Purple Sandpiper | Calidris maritima |
| Purple Swamphen | Porphyrio porphyrio |
| Purple-bellied Lory | Lorius hypoinochrous |
| Purple-capped Lory | Lorius domicellus |
| Purple-crested Touraco | Musophaga porphyreolophus porphyreolophus |
| Purple-crowned Lorikeet | Glossopsitta porphyreocephala |
| Purple-naped Lory | Lorius domicella |
| Purple-tailed Imperial-Pigeon | Ducula rufigaster |
| Purplish-backed Jay | Cyanocorax beecheii |
| Pygmy Ground-Dove | Columbina minuta |
| Pygmy Hanging Parrot | Loriculus pusillus exilis |
| Pygmy Nuthatch | Sitta pygmaea |
| Pygmy Owl | Glaucidium |
| Pyrrhuloxia | Cardinalis sinuatus |
| Pyrrhura Conure | Pyrrhura |
| Quaker Parrot | Myiopsitta monachus monachus |
| Queen of Bavaria Conure | Aratinga guarouba |
| Racquet-tailed Roller | Coracias spatulata |
| Radjah Shelduck | Tadorna radjah |
| Raggiana Bird of Paradise | Paradisaea raggiana |
| Rainbow Lory | Trichoglossus haematodus |
| Rajah Lory | Chalcopsitta atra insignis |
| Razor Bill | Alca torda |
| Razorbill | Alca torda |
| Red & Black Broadbill | Cimbirhynchus macrorhynchus |
| Red & Blue Lory | Eos histrio |
| Red & Green Macaw | Ara chloroptera |
| Red Crossbill | Loxia curvirostra |
| Red Fody | Foudia madagascariensis |
| Red Kite | Milvus milvus |
| Red Knot | Calidris canutus |
| Red Lory | Eos bornea |
| Red Phalarope | Phalaropus fulicaria |
| Red Rosella | Platycercus eximius eximius |
| Red Shining Parrot | Prosopeia tabuensis tabuensis |
| Red-bellied Hanging Parrot | Loriculus pusillus exilis |
| Red-bellied Macaw | Ara manilata |
| Red-bellied Parrot | Poicephalus rufiventris |
| Red-bellied Woodpecker | Melanerpes carolinus |
| Red-bellied Woodpecker | Melanerpes carolinus |
| Red-billed Blue Magpie | Urocissa erythrorhyncha |
| Red-billed Hornbill | Tockus erythrorhynchus |
| Red-billed Parakeet | Psilopsiagon aurifrons rubrirostris |
| Red-billed Parrot | Pionus sordidus |
| Red-billed Pigeon | Columba flavirostris |
| Red-billed Pionus | Pionus sordidus |
| Red-billed Teal | Anas erythrorhyncha |
| Red-billed Toucan | Ramphastos tucanus tucanus |
| Red-billed Tropicbird | Phaethon aethereus |
| Red-breasted Flycatcher | Ficedula parva |
| Red-breasted Goose | Branta ruficollis |
| Red-breasted Lory | Lorius lory erythrothorax |
| Red-breasted Merganser | Mergus serrator |
| Red-breasted Nuthatch | Sitta canadensis |
| Red-breasted Sapsucker | Sphyrapicus ruber |
| Red-breasted Toucan | Ramphastos dicolorus dicolorus |
| Red-breasted Toucan | Ramphastos dicolorus |
| Red-browed Amazon | Amazona rhodocorytha |
| Red-capped Cardinal | Paroaria gularis |
| Red-capped Parakeet | Purpureicephalus spurius |
| Red-capped Parrot | Pionopsitta pileata |
| Red-cheeked Parrot | Geoffroyus geoffroyi |
| red-cockaded Woodpecker | Picoides borealis |
| Red-cockaded Woodpecker | Picoides borealis |
| Red-cockaded Woodpecker | Picoides borealis |
| Red-collared Lorikeet | Trichoglossus haematodus rubritorquis |
| Red-crested Cardinal | Paroaria coronata |
| Red-crested Cardinal Finch | Coryphospingus culcullatus culcullatus |
| Red-crested Touraco | Tauraco erythrolophus erythrolophus |
| Red-crowned Amazon | Amazona dufresniana rhodocorytha |
| Red-crowned Crane | Grus japonensis |
| Red-crowned Parrot | Amazona viridigenalis |
| Red-crowned Racquet-tail | Prioniturus platenae montanus |
| Reddish Egret | Egretta rufescens |
| Red-eared Conure | Pyrrhura hoematotis |
| Red-eyed Vireo | Vireo olivaceus |
| Red-faced Cormorant | Phalacrocorax urile |
| Red-faced Fig Parrot | Cyclopsitta diophthalma |
| Red-faced Liocichla | Liocichla phoenicea |
| Red-faced Mousebird | Urocolius macrourus indicus |
| Red-faced Warbler | Cardellina rubrifrons |
| Red-fan Parrot | Deroptyus accipitrinus accipitrinus |
| Red-flanked Bluetail | Tarsiger cyanurus |
| Red-footed Booby | Sula sula |
| Red-fronted Amazon | Amazona vittata |
| Red-fronted Conure | Aratinga wagleri wagleri |
| Red-fronted Kakariki | Cyanoramphus novaezelandiae |
| Red-fronted Lorikeet | Charmosyna rubronotata |
| Red-fronted Lory | Charmosyna rubronotata |
| Red-fronted Macaw | Ara rubrogenys |
| Red-fronted Parakeet | Cyanoramphus novaezelandia |
| Redhead | Aythya americana |
| Red-headed Finch | Amadina erythrocephala |
| Red-headed Parrot | Poicephalus gulielmi |
| Red-headed Parrot Finch | Erythrura psittacea |
| Red-headed Woodpecker | Melanerpes erythrocephalus |
| Red-knobbed Hornbill | Rhyticeros cassidix |
| Red-legged Kittiwake | Rissa brevirostris |
| Red-legged Seriema | Cariama cristata |
| Red-lored Amazon | Amazona autumnalis |
| Red-masked Conure | Aratinga erythrogenys |
| Red-naped Falcon | Falco pelegrinoides babylonicus |
| Red-naped Sapsucker | Sphyrapicus nuchalis |
| Red-necked Amazon | Amazona arausiaca |
| Red-necked Grebe | Podiceps grisegena |
| Red-necked Phalarope | Phalaropus lobatus |
| Red-necked Stint | Calidris ruficollis |
| Red-rumped Parrot | Psephotus haematonotus |
| Red-shouldered Hawk | Buteo lineatus |
| Red-shouldered Macaw | Ara nobilis nobilis |
| Red-sided Eclectus Parrot | Eclectus roratus polychloros |
| Red-spectacled Amazon | Amazona pretrei |
| Red-spotted Racquet-tail | Prioniturus discurus flavicans |
| Red-tailed Amazon | Amazona brasiliensis |
| Red-tailed Black Cockatoo | Calyptorhynchus magnificus |
| Red-tailed Black Cockatoo | Calyptorhynchus banksii banksii |
| Red-tailed Buzzard | Buteo auguralis |
| Red-tailed Hawk | Buteo jamaicensis |
| Red-tailed Hawk | Buteo jamaicensis |
| Red-tailed Laughing Thrush | Garrulax milnei |
| Red-tailed Minla | Minla ignotincta |
| Red-tailed Tropicbird | Phaethon rubricauda |
| Red-throated Amazon | Amazona collaria |
| Red-throated Conure | Aratinga holochlora rubritorquis |
| Red-throated Loon | Gavia stellata |
| Red-throated Pipit | Anthus cervinus |
| Red-topped Amazon | Amazona rhodocorytha |
| Red-vented Cockatoo | Cacatua haematuropygia |
| Red-whiskered Bulbul | Pycnonotus jocosus |
| Redwing | Turdus ilacus |
| Redwing | Turdus iliacus |
| Red-winged Blackbird | Agelaius phoeniceus |
| Red-winged Laughing Thrush | Garrulax formosus |
| Red-winged Parakeet | Aprosmictus erythropterus |
| Red-winged Parrot | Aprosmictus erythropterus erythropterus |
| Red-winged Parrotlet | Touit dilectissima |
| Red-winged Thrush | Turdus iliacus |
| Red-winged Tinamou | Rhynchotus rufescens |
| Reed Bunting | Emberiza schoeniclus |
| Regent Parrot | Polytelis anthopeplus anthopeplus |
| Reichenow's Cape Parrot | Poicephalus robustus suahelicus |
| Reichenow's Weaver | Ploceus baglafecht |
| Rhinoceros Auklet | Cerorhinca monocerata |
| Rhinocerous Auklet | Cerorhinca monocerata |
| Rhinocerous Hornbill | Buceros rhinoceros |
| Ring-billed Gull | Larus delawarensis |
| Ringed Kingfisher | Ceryle torquata |
| Ring-necked Dove | Streptopelia risoria |
| Ring-necked Duck | Aythya collaris |
| Ring-necked Fruit Dove | Ptilinopus cinctus porphyreus |
| Ring-necked Parakeet | Psittacula krameri manillensis |
| Ring-necked Pheasant | Phasianus colchicus |
| Road Runner | Geococcyx californianus |
| Roadside Hawk | Buteo magnirostris |
| Rock Conure | Pyrrhura rupicola |
| Rock Dove | Columba livia |
| Rock Parrot | Neophema petrophila |
| Rock Pebbler | Polytelis anthopeplus |
| Rock Pigeon | Columba livia |
| Rock Ptarmigan | Lagopus mutus |
| Rock Sandpiper | Calidris ptilocnemis |
| Rock Wren | Salpinctes obsoletus |
| Rock-hopper Penguin | Eudyptes crestatus |
| Roseate Cockatoo | Cacatua roseicapillus |
| Roseate Spoonbill | Ajaia ajaja |
| Roseate Spoonbill | Ajaia ajaja |
| roseate Tern | Sterna dougallii dougallii |
| Roseate Tern | Sterna dougallii |
| Rose-breasted Cockatoo | Cacatua roseicapillus |
| Rose-breasted Grosbeak | Pheucticus ludovicianus |
| Rose-crowned Conure | Pyrrhura rhodocephala |
| Rose-fronted Conure | Pyrrhura picta roseifrons |
| Rose-headed Conure | Pyrrhura picta roseifrons |
| Rosella | Platycercus |
| Rosenberg's Lorikeet | Trichoglossus haematodus rosenbergii |
| Rose-throated Becard | Pachyramphus aglaiae |
| Rosey Bourke's Parakeet | Neopsephotus bourkii |
| Ross's Goose | Chen rossii |
| Ross's Gull | Rhodostethia rosea |
| Rosy Starling | Sturnus roseus |
| Rota bridled White-eye | Zosterops rotensis |
| Rothschild's Amazon | Amazona barbadensis rothschildi |
| Rothschild's Mynah | Leucopsar rothschildi |
| Rothschild's Parakeet | Psittacula Intermedia |
| Rothschild's Peacock Pheasant | Polyplectron inopinatum |
| Rough-legged Hawk | Buteo lagopus |
| Rough-legged Hawk | Buteo lagopus |
| Royal Spoonbill | Platalea leucorodia regia |
| Royal Starling | Cosmopsarus regius |
| Royal Tern | Sterna maxima |
| Ruby Macaw | Ara chloroptera/macao |
| Ruby-crowned Kinglet | Regulus calendula |
| Ruby-throated Hummingbird | Archilochus colubris |
| Ruddy Cuckoo-Dove | Macropygia emiliana |
| Ruddy Duck | Oxyura jamaicensis |
| Ruddy Ground-Dove | Columbina talpacoti |
| Ruddy Quail-Dove | Geotrygon montana |
| Ruddy Quail-Dove | Geotrygon montana |
| Ruddy Shelduck | Tadorna ferruginea |
| Ruddy Turnstone | Arenaria interpres |
| Rueppell's Parrot | Poicephalus meyeri rueppellii |
| Rueppell's white-crowned Shrike | Eurocephalus rueppelli |
| Ruff | Philomachus pugnax |
| Ruffed Grouse | Bonasa umbellus |
| Rufous Hummingbird | Selasphorus rufus |
| Rufous Legged Owl | Strix rupifes |
| Rufous Tree-Pie | Dendrocitta vagabunda |
| Rufous-backed Robin | Turdus rufopalliatus |
| Rufous-capped Warbler | Basileuterus rufifrons |
| Rufous-crowned Roller | Coracias noevia |
| Rufous-crowned Sparrow | Aimophila ruficeps |
| Rufous-tailed Hummingbird | Amazilia tzacatl |
| Rufous-vented Chacalaca | Ortalis ruficauda |
| Rufous-winged Sparrow | Aimophila carpalis |
| Ruppell's Parrot | Poicephalus rueppellii |
| Ruppell's Vulture | Gyps ruppellii |
| Rustic Bunting | Emberiza rustica |
| Rusty Barred Owl | Strix hylophila |
| Rusty Blackbird | Euphagus carolinus |
| Sabine's Gull | Xema sabini |
| Sacred Ibis | Threskiornis aethiopicus |
| Saddle-billed Stork | Ephippiorhynchus senegalensis |
| Saffron Finch | Sicalis flaveola |
| Saffron-crowned Tanager | Tangara xanthocephala |
| Saffron-headed Parrot | Pionopsitta pyrilia |
| Sage Grouse | Centrocercus urophasianus |
| Sage Sparrow | Amphispiza belli |
| Sage Thrasher | Oreoscoptes montanus |
| Saker Falcon | Falco cherrug |
| Salawati King Parrot | Alisterus amboinensis dorsalis |
| Salmon-crested Cockatoo | Cacatua moluccensis |
| Saltmarsh Sharp-tailed Sparrow | Ammodramus caudacutus |
| Salvadori's Fig Parrot | Psittaculirostris salvadorii |
| Salvin's Amazon | Amazona autumnalis salvini |
| Salvin's Pigeon | Columba oenops |
| San Clemente loggerhead Shrike | Lanius ludovicianus mearnsi |
| San Clemente sage Sparrow | Amphispiza belli clementeae |
| Sanderling | Calidris alba |
| Sandhill Crane | Grus canadensis |
| Sandhill Crane | Grus canadensis |
| Sandia Conure | Pyrrhura rupicola sandiae |
| Sandwich Tern | Sterna sandvicensis |
| Sangihe Hanging Parrot | Loriculus stigmatus catamene |
| Santa Cruz Conure | Pyrrhura molinae restricta |
| Santa Marta Conure | Pyrrhura viridicata |
| Sarus Crane | Grus antigone |
| Savannah Hawk | Buteogallus meridionalis |
| Savannah Sparrow | Passerculus sandwichensis |
| Savigny Eagle Owl | Bubo ascalaphus |
| Say's Phoebe | Sayornis saya |
| Scaled Quail | Callipepla squamata |
| Scaley-naped Pigeon | Columba speciosa squamosa |
| Scaly-breasted Lorikeet | Trichoglossus chlorolepidotus |
| Scaly-headed Pionus | Pionus maximiliani maximiliani |
| Scaly-naped Pigeon | Columba squamosa |
| Scarlet Ibis | Endocimus albus ruber |
| Scarlet Ibis | Eudocimus ruber |
| Scarlet Macaw | Ara macao |
| Scarlet Tanager | Piranga olivacea |
| Scarlet Tanager | Piranga olivacea |
| Scarlet-breasted Parrot | Neophema splendida |
| Scarlet-chested Parakeet | Neophema splendida |
| Scarlet-chested Parrot | Neophema splendida |
| Scarlet-fronted Conure | Aratinga wagleri frontata |
| Scarlet-headed Blackbird | Amblyramphus holosericeus |
| Scarlet-rumped Tanager | Ramphocelus passerinii passerinii |
| Schalow's Touraco | Tauraco schalowi |
| Scheepmaker's Crowned Pigeon | Goura scheepmakeri |
| Scissor-tailed Flycatcher | Tyrannus forficatus |
| Scott's Oriole | Icterus parisorum |
| Seaside Sparrow | Ammodramus maritimus |
| Secretary Bird | Sagittarius serpentarius |
| Sedge Wren | Cistothorus platensis |
| Semipalmated Plover | Charadrius semipalmatus |
| Semipalmated Sandpiper | Calidris pusilla |
| Senegal Parrot | Poicephalus senegalus |
| Severe Macaw | Ara severa severa |
| Seychelles Parakeet | Psittacula wardi |
| Shama Thrush | Copsychus malabarious |
| Shamrock Macaw | Ara militaris militaris/macao |
| Sharpshin Hawk | Accipiter striatus |
| Sharp-shinned Hawk | Accipiter striatus |
| Sharp-tailed Conure | Aratinga acuticaudata acuticaudata |
| Sharp-tailed Grouse | Tympanuchus phasianellus |
| Sharp-tailed Sandpiper | Calidris acuminata |
| Shell Parakeet | Melopsittacus undulatus |
| Shikra | Accipiter badius badius |
| Shiny Cowbird | Molothrus bonariensis |
| Short-billed Cockatoo | Cacatua sanguinea sanguinea |
| Short-billed Dowitcher | Limnodromus griseus |
| Short-eared Owl | Asio flammeus |
| Short-eared Owl | Asio flammeus |
| short-tailed Albatross | Phoebastria |
| Short-tailed Albatross | Phoebastria albatrus |
| Short-tailed Hawk | Buteo brachyurus |
| Short-tailed Parrot | Graydidascalus brachyurus |
| Short-tailed Shearwater | Puffinus tenuirostris |
| Shy Albatross | Thalassarche cauta |
| Siberian Accentor | Prunella montanella |
| Siberian Blue Robin | Luscinia cyane |
| Siberian Crane | Grus leucogeranus |
| Siberian Eagle Owl | Bubo bubo sibericus |
| Siberian Flycatcher | Muscicapa sibirica |
| Siberian Gold Finch | Carduelis carduelis frigoris |
| Siberian Goose | Branta ruficollis |
| Siberian Jay | Perisoreus infaustus |
| Siberian Rubythroat | Luscinia calliope |
| Sierra Parakeet | Psilopsiagon aymara |
| Silver Bird | Empidornis semipartitus |
| Silver Gull | Larus novaehollandiae |
| Silver Pheasant | Lophura nycthemera nycthemera |
| Silver-beaked Tanager | Ramphocelus carbo carbo |
| Silvery-cheeked Hornbill | Bycanistes brevis |
| Simple Parrot | Geoffroyus simplex |
| Singing Parrot | Geoffroyus heteroclitus |
| Sky Lark | Alauda arvensis |
| Slate-throated Redstart | Myioborus miniatus |
| Slaty-backed Gull | Larus schistisagus |
| Slaty-breasted Tinamou | Crypturellus boucardi boucardi |
| Slaty-headed Parakeet | Psittacula himalayana |
| Slender-billed Cockatoo | Cacatua tenuirostris |
| Slender-billed Conure | Enicognathus leptorhynchus |
| Slender-billed Curlew | Numenius tenuirostris |
| small Kauai Thrush | Myadestes palmeri |
| Small-billed Tinamou | Crypturellus parvirostris |
| Smew | Mergellus albellus |
| Smith's Longspur | Calcarius pictus |
| Smooth-billed Ani | Crotophaga ani |
| Snail Kite | Rostrhamus sociabilis |
| Snail Kite | Rostrhamus sociabilis |
| Snow Bunting | Plectrophenax nivalis |
| Snow Goose | Chen caerulescens |
| Snowy Egret | Egretta thula |
| Snowy Owl | Nyctea scandiaca |
| Snowy Owl | Nyctea scandiaca |
| Snowy Plover | Charadrius alexandrinus |
| Snowy-crowned Robin Chat | Cossypha niveicapilla |
| Snowy-headed Robin Chat | Cossypha niveicapilla |
| Society Finch | Lonchura domestica |
| Sokoke Scops Owl | Otus ireneae |
| Solitary Sandpiper | Tringa solitaria |
| Solomon Eclectus Parrot | Eclectus roratus solomonensis |
| Solomon Island Eclectus Parrot | Eclectus |
| Song Parrot | Geoffroyus heteroclitus |
| Song Sparrow | Melospiza melodia |
| Song Thrush | Turdus viscivorus |
| Sonora Lilac-crowned Amazon | Amazona finschi woodi |
| Sooty Shearwater | Puffinus griseus |
| Sooty Tern | Sterna fuscata |
| Sora | Porzana carolina |
| SouancĀ's Conure | Pyrrhura melanura souancei |
| South Polar Skua | Catharacta maccormicki |
| Southern Ground Hornbill | Bucorvus cafer |
| Southern Martin | Progne elegans |
| southwestern willow Flycatcher | Empidonax traillii extimus |
| Spangled Cotinga | Cotinga cayana |
| Sparkling Violet-Ear | Colibri coruscans |
| Sparrow Hawk | Accipiter nisus |
| Speckled Mousebird | Colius striatus |
| Speckled Wood-Pigeon | Columba hodgsonii |
| Speckle-faced Pionus | Pionus tumultuosus |
| Spectacled Amazon | Amazona albifrons albifrons |
| spectacled Eider | Somateria fischeri |
| Spectacled Eider | Somateria fischeri |
| Spectacled Owl | Pulsatrix perspicillata |
| Spectacled Parrotlet | Forpus conspicillatus |
| Spix Guan | Penelope obscura jacquacu |
| Spix Macaw | Cyanopsitta spixii |
| Splendid Grass Parakeet | Neophema splendida |
| Spoonbill Sandpiper | Eurynorhynchus pygmeus |
| Spot-billed Duck | Anas poecilorhyncha |
| Spot-billed Pelican | Pelecanus philippensis |
| Spot-breasted Oriole | Icterus pectoralis |
| Spotted Catbird | Ailuroedus melanotis |
| Spotted Dikkop | Burhinus capensis |
| Spotted Dove | Streptopelia chinensis |
| Spotted Eagle Owl | Bubo africanus |
| Spotted Little Owl | Athene brama |
| Spotted Owl | Strix occidentalis |
| Spotted Owl | Strix occidentalis |
| Spotted Rail | Pardirallus maculatus |
| Spotted Redshank | Tringa erythropus |
| Spotted Sandpiper | Actitis macularia |
| Spotted Tanager | Tangara punctata |
| Spotted Towhee | Pipilo maculatus |
| Sprague's Pipit | Anthus spragueii |
| Spreo Starling | Spreo superbus |
| Spruce Grouse | Falcipennis canadensis |
| Spur-winged Plover | Vanellus spinosus |
| Squatter Pigeon | Geophaps scripta |
| St. Lucia Amazon | Amazona versicolor |
| St. Lucia Parrot | Amazona versicolor |
| St. Thomas Conure | Aratinga pertinax pertinax |
| St. Vincent's Amazon | Amazona guildingii |
| Stanley Crane | Anthropoides paradisem |
| Stanley Rosella | Platycercus icterotis icterotis |
| Stejneger's Petrel | Pterodroma longirostris |
| Stella's Lorikeet | Charmosyna papou stellae |
| Steller's Eider | Polysticta stelleri |
| Steller's Eider | Polysticta stelleri |
| Steller's Jay | Cyanocitta stelleri |
| Steller's Sea Eagle | Haliaeetus pelagicus |
| Steller's Sea-Eagle | Haliaeetus pelagicus |
| Steppe Eagle | Aquila nepalensis |
| Stilt Sandpiper | Calidris himantopus |
| Stone Curlew | Burhinus oedicnemus |
| Stonechat | Saxicola torquata |
| Storm's Stork | Ciconia episcopus stormi |
| Streak-backed Oriole | Icterus pustulatus |
| Streak-backed Oriole | Icterus pustulatus |
| Streaked Shearwater | Calonectris leucomelas |
| Stresemann's Lory | Lorius lory amabilis |
| Striated Caracara | Phalcoboenus australis |
| Striated Lorikeet | Charmosyna multistriata |
| Striated Scops Owl | Otus brucei |
| Strickland's Woodpecker | Picoides stricklandi |
| Striped Owl | Asio clamator |
| Stripe-headed Tanager | Spindalis zena |
| Stripe-throated Yuhina | Yuhina gularis |
| Sulawesi Hanging Parrot | Loriculus stigmatus stigmatus |
| Sulawesi Long-tailed Starling | Streptocitta albicollis |
| Sulawesi Quail (Ground) Dove | Gallicolumba tristigmata |
| Sulawesi Red-knobbed Hornbill | Aceros leucocephalus cassidix |
| Sulawesi Tarictic Hornbill | Penelopides exarhatus |
| Sulphur-bellied Flycatcher | Myiodynastes luteiventris |
| Sulphur-breasted Toucan | Ramphastos dicolorus sulfuratus |
| Sulphur-crested Cockatoo | Cacatua galerita galerita |
| Sulphur-winged Conure | Pyrrhura hoffmanni |
| Sulu Racquet-tail | Prioniturus discurus verticalis |
| Summer Tanager | Piranga rubra |
| Sun Bittern | Eurypyga helias helias |
| Sun Conure | Aratinga solstitialis solstitialis |
| Sunda Scops Owl | Otus lempiji |
| Sunday Conure | Aratinga solstitialis solstitialis/jandaya |
| Superb Parrot | Polytelis swainsonii |
| Superb Starling | Lamprotornis superbus |
| Surf Scoter | Melanitta perspicillata |
| Surfbird | Aphriza virgata |
| Swainson's Blue Mtn Lory | Trichoglossus haematodus moluccanus |
| Swainson's Hawk | Buteo swainsoni |
| Swainson's Hawk | Buteo swainsoni |
| Swainson's Lorikeet | Trichoglossus haematodus moluccanus |
| Swainson's Thrush | Catharus ustulatus |
| Swainson's Toucan | Ramphastos ambiguus swainsonii |
| Swainson's Warbler | Limnothlypis swainsonii |
| Swallow-tailed Kite | Elanoides forficatus |
| Swallow-tailed Kite | Elanoides forficatus |
| Swamp Parrot | Pezoporus wallicus |
| Swamp Sparrow | Melospiza georgiana |
| Swan | Cygnus |
| Swift Parrot | Lathamus discolor |
| Swinderen's Lovebird | Agapornis swindernianus swindernianus |
| Syrian Little Owl | Athene noctua lilith |
| Tamaulipas Crow | Corvus imparatus |
| Tanimbar Cockatoo | Cacatua sanguinea |
| Tasmanian Rosella | Platycercus caledonicus |
| Tataupa Tinamou | Crypturellus tataupa |
| Taveta Golden Weaver | Ploceus castaneiceps |
| Tawny Eagle | Aquila rapax rapax |
| Tawny Frogmouth | Podargus strigoides |
| Tawny Owl | Strix aluco |
| Tawny-breasted Tinamou | Nothocercus julius |
| Tawny-shouldered Blackbird | Agelaius humeralis |
| Temminck's Stint | Calidris temminckii |
| Tennessee Warbler | Vermivora peregrina |
| Terek Sandpiper | Xenus cinereus |
| Thayer's Gull | Larus thayeri |
| Thick-billed Ground Pigeon | Trugon terrestris |
| Thick-billed Kingbird | Tyrannus crassirostris |
| Thick-billed Murre | Uria lomula |
| Thick-billed Murre | Uria lomvia |
| Thick-billed Parrot | Rhynchopsitta pachyrhyncha pachyrhyncha |
| Thick-billed Parrot | Rhynchopsitta pachyrhyncha |
| Thick-billed Vireo | Vireo crassirostris |
| Thicket Tinamou | Crypturellus cinnamomeu |
| Three-toed Woodpecker | Picoides tridactylus |
| Timneh African Grey | Psittacus erithacus timneh |
| Timor Cockatoo | Cacatua sulphurea parvula |
| Toco Toucan | Ramphastos toco |
| Torresian Imperial-Pigeon | Ducula spilorrhoa |
| Toulouse Goose | Anser anser |
| Tovi Parrot | Brotogeris jugularis |
| Townsend's Solitaire | Myadestes townsendi |
| Townsend's Warbler | Dendroica townsendi |
| Tree Pipit | Anthus trivialis |
| Tree Swallow | Tachycineta bicolor |
| Tres Marias Amazon | Amazona oratrix tresmariae |
| Triangular-spotted Pigeon | Columba guinea |
| Tricolored Blackbird | Agelaius tricolor |
| Tricolored Heron | Egretta tricolor |
| Tri-colored Nun Finch | Erythrura tricolor tricolor |
| Triton Cockatoo | Cacatua galerita triton |
| Tropical Kingbird | Tyrannus melancholicus |
| Tropical Mockingbird | Mimus polyglottos gilvus |
| Tropical Parula | Parula pitiayumi |
| Tropical Screech Owl | Otus choliba |
| Troupial | Icterus icterus icterus |
| Trumpeter | Psophia |
| Trumpeter Hornbill | Ceratogymna bucinator |
| Trumpeter Swan | Cygnus cygnus buccinator |
| Trumpeter Swan | Cygnus buccinator |
| Tucuman Amazon | Amazona tucumana |
| Tufted Duck | Aythya fuligula |
| Tufted Duck | Aythya fuligula |
| Tufted Flycatcher | Mitrephanes phaeocercus |
| Tufted Puffin | Fratercula cirrhata |
| Tufted Puffin | Fratercula cirrhata |
| Tufted Titmouse | Baeolophus bicolor |
| Tui Parakeet | Brotogeris sanctithomae |
| Tundra Swan | Cygnus columbianus |
| Turkey Vulture | Cathartes aura |
| Turkey Vulture | Cathartes aura |
| Turkmenian Eagle Owl | Bubo bubo turcomanus |
| Turquoise Tanager | Tangara mexicana |
| Turquoisine Parakeet | Neophema pulchella |
| Twenty-eight Parakeet | Barnardius zonarius semitorquatus |
| Umbrella Cockatoo | Cacatua alba |
| Undulated Tinamou | Crypturellus undulatus |
| Upland Sandpiper | Bartramia longicauda |
| Ural Owl | Strix uralensis |
| Uvaean Parakeet | Eunymphicus cornutus uvalensis |
| Varied Bunting | Passerina versicolor |
| Varied Thrush | Ixoreus naevius |
| Variegated Flycatcher | Empidonomus varius |
| Vasa Parrot | Coracopsis vasa |
| Vaux's Swift | Chaetura vauxi |
| Veery | Catharus fuscescens |
| Veraguas Conure | Aratinga pertinax ocularis |
| Verdin | Auriparus flaviceps |
| Vermilion Flycatcher | Pyrocephalus rubinus |
| Vernal Hanging Parrot | Loriculus beryllinus vernalis |
| Verreaux's Eagle Owl | Bubo lacteus |
| Vesper Sparrow | Pooecetes gramineus |
| Victoria-crowned Pigeon | Goura victoria |
| Vinaceous Amazon | Amazona vinacea |
| Vinous-throated Parrotbill | Paradoxornis webbianus |
| Violaceous Plantain Eater | Musophaga violacea |
| Violaceous Touraco | Musophaga violacea violacea |
| Violet Plantain Eater | Musophaga violacea |
| Violet Touraco | Musophaga violacea |
| Violet-backed Starling | Cinnyricinclus leucogaster |
| Violet-crowned Hummingbird | Amazilia violiceps |
| Violet-green Swallow | Tachycineta thalassina |
| Violet-naped Lory | Eos squamata squamata |
| Violet-necked Lory | Eos squamata |
| Virginia Rail | Rallus limicola |
| Virginia's Warbler | Vermivora virginiae |
| Vosmaeri Eclectus Parrot | Eclectus roratus vosmaeri |
| Vulturine Guineafowl | Acryllium vulturinum |
| Wagler's Conure | Aratinga wagleri wagleri |
| Wagler's Macaw | Ara glaucogularis |
| Waldrapp Ibis | Geronticus eremita |
| Wallace's Hanging Parrot | Loriculus pusillus flosculus |
| Wandering Albatross | Diomedea exulans |
| Wandering Tattler | Heteroscelus incanus |
| Warbler | Vermivora bachmanii |
| Warbler | Dendroica chrysoparia |
| Warbler | Dendroica kirtlandii |
| Warbling Vireo | Vireo gilvus |
| Wattled Crane | Grus carunculatus |
| Wattled Starling | Creatophora cinerea |
| Weber's Lorikeet | Trichoglossus haemotodus weberi |
| Weddell's Conure | Aratinga weddellii |
| Wedge-rumped Storm-Petrel | Oceanodroma tethys |
| Wedge-tailed Shearwater | Puffinus pacificus |
| West African Crowned Crane | Balearica pavonina pavonina |
| West Indian Whistling Duck | Dendrocygna arborea |
| Western Bluebird | Sialia mexicana |
| Western Corella | Cacatua pastinator |
| Western European Roller | Coracias garrulus garrulus |
| Western Grebe | Aechmophorus occidentalis |
| Western Grey Plantain Eater | Crinifer piscator |
| Western Grey Touraco | Crinifer piscator |
| Western Gull | Larus occidentalis |
| Western Kingbird | Tyrannus verticalis |
| Western Long-billed Corella | Cacatua pastinator |
| Western Meadowlark | Sturnella neglecta |
| Western Reef-Heron | Egretta gularis |
| Western Rosella | Platycercus icterotis |
| Western Sandpiper | Calidris mauri |
| Western Screech Owl | Otus kennicotti |
| Western Screech-Owl | Otus kennicottii |
| Western Scrub-Jay | Aphelocoma californica |
| western snowy Plover | Charadrius alexandrinus nivosus |
| Western Tanager | Piranga ludoviciana |
| Western Wood-Pewee | Contopus sordidulus |
| Whale-headed Stork | Balaeniceps rex |
| Whimbrel | Numenius phaeopus |
| Whip-poor-will | Caprimulgus vociferus |
| Whiskered Auklet | Aethia pygmaea |
| Whiskered Auklet | Aethia pygmaea |
| Whiskered Fig Parrot | Psittaculirostris salvadorii |
| Whiskered Lorikeet | Oreopsittacus arfaki |
| Whiskered Screech-Owl | Otus trichopsis |
| Whiskered Tern | Chlidonias hybridus |
| White Cockatoo | Cacatua alba alba |
| White Crowned Pigeon | Columba leucocephala |
| White Ibis | Eudocimus albus |
| White Imperial-Pigeon | Ducula luctuosa |
| White Pelican | Pelecanus onocrotalus |
| White Stork | Ciconia ciconia ciconia |
| White Wagtail | Motacilla alba |
| White-backed Duck | Thalassornis leuconotus |
| White-backed Mousebird | Colius colius |
| White-backed Vulture | Gyps bengalensis |
| White-bellied Bustard | Eupodotis senegalensis |
| White-bellied Caique | Pionites leucogaster |
| White-bellied Go-away Bird | Corythaixoides leucogaster |
| White-bellied Imperial-Pigeon | Ducula forsteni |
| White-bellied Stork | Ciconia abdimii |
| White-breasted Caique | Pionites leucogaster |
| White-breasted Conure | Pyrrhura albipectus |
| White-breasted Cormorant | Phalacrocorax carbo lucidus |
| White-breasted Kingfisher | Halcyon smyrnensis |
| White-breasted Nuthatch | Sitta carolinensis |
| White-breasted Waterhen | Amaurornis phoenicurus |
| White-breasted Wood Swallow | Artamus leucorhynchus |
| White-browed Coucal | Centropus superciliosus |
| White-capped Pionus | Pionus senilis |
| White-cheeked Pintail | Anas bahamensis |
| White-cheeked Touraco | Tauraco leucotis leucotis |
| White-chinned Petrel | Procellaria aequinoctialis |
| White-collared Kingfisher | Halcyon chloris |
| White-collared Seedeater | Sporophila torqueola |
| White-collared Swift | Streptoprocne zonaris |
| White-collared Yuhina | Yuhina diademata |
| White-crested Cockatoo | Cacatua alba alba |
| White-crested Guan | Penelope jacucaca pileata |
| White-Crested Hornbill | Berenicornis albocristatus |
| White-crested Laughing Thrush | Garrulax leucolophus |
| White-crested Touraco | Tauraco leucolophus |
| White-crowned Pigeon | Columba leucocephala |
| White-crowned Pionus | Pionus senilis |
| White-crowned Robin Chat | Cossypha albicapilla |
| White-crowned Sparrow | Zonotrichia leucophrys |
| White-eared Bulbul | Pycnonotus leucotis |
| White-eared Conure | Pyrrhura leucotis leucotis |
| White-eared Hummingbird | Hylocharis leucotis |
| White-eared Pheasant | Crossoptilon crossoptilon |
| White-eyed Conure | Aratinga leucophthalmus leucophthalmus |
| White-eyed Duck | Aythya australis |
| White-eyed Vireo | Vireo griseus |
| White-faced Ibis | Plegadis chihi |
| White-faced Owl | Sceloglaux albifacies |
| White-faced Piping Guan | Pipile pipile cumanensis |
| White-faced Scops Owl | Otus leucotis |
| White-faced Storm-Petrel | Pelagodroma marina |
| White-faced Tree Duck | Dendrocygna viduata |
| White-fronted Amazon | Amazona albifrons |
| White-fronted Bee-eater | Merops bullockoides |
| White-fronted Dove | Leptotila verreauxi verreauxi |
| White-headed Buffalo Weaver | Dinemellia dinemelli |
| White-headed Mousebird | Colius leucocephalus |
| White-headed Pionus | Pionus seniloides |
| White-headed Vulture | Aegypius occipitalis |
| White-headed Woodpecker | Picoides albolarvatus |
| White-naped Crane | Grus vipio |
| white-necked Crow | Corvus leucognaphalus |
| White-necked Raven | Corvus albicollis |
| White-rumped Sandpiper | Calidris fuscicollis |
| White-tailed Black Cockatoo | Calyptorhynchus baudinii baudinii |
| White-tailed Eagle | Haliaeetus albicilla |
| White-tailed Hawk | Buteo albicaudatus |
| White-tailed Hawk | Buteo albicaudatus |
| White-tailed Jay | Cyanocorax mystacalis |
| White-tailed Kite | Elanus leucurus |
| White-tailed Ptarmigan | Lagopus leucurus |
| White-tailed Sea Eagle | Haliaeetus albicilla |
| White-tailed Trogon | Trogon viridis |
| White-tailed Tropicbird | Phaethon lepturus |
| White-throated Bee-eater | Merops albicollis |
| White-throated Kingfisher | Halcyon smyrnensis |
| White-throated Needletail | Hirundapus caudacutus |
| White-throated Robin | Turdus assimilis |
| White-throated Sparrow | Zonotrichia albicollis |
| White-throated Swift | Aeronautes saxatalis |
| White-tipped Dove | Leptotila verreauxi |
| White-winged Crossbill | Loxia leucoptera |
| White-winged Dove | Zenaida asiatica |
| White-winged Dove | Zenaida asiatica |
| White-winged Parakeet | Brotogeris versicolorus |
| White-winged Parakeet | Brotogeris versicolurus |
| White-winged Scoter | Melanitta fusca |
| White-winged Tern | Chlidonias leucopterus |
| Whooper Swan | Cygnus cygnus |
| whooping Crane | Grus americana |
| Whooping Crane | Grus americana |
| Whooping Crane | Grus americana |
| Wild Turkey | Meleagris gallopavo |
| Wild Turkey | Meleagris gallopavo |
| Willet | Catoptrophorus semipalmatus |
| William's Fig Parrot | Cyclopsitta gulielmitertii |
| Williamson's Sapsucker | Sphyrapicus thyroideus |
| Willow Flycatcher | Empidonax traillii |
| Willow Ptarmigan | Lagopus lagopus |
| Wilson's Phalarope | Phalaropus tricolor |
| Wilson's Plover | Charadrius wilsonia |
| Wilson's Storm-Petrel | Oceanites oceanicus |
| Wilson's Warbler | Wilsonia pusilla |
| Winter Wren | Troglodytes troglodytes |
| Wompoo Fruit Dove | Ptilinopus magnificus |
| Wonga Pigeon | Leucosarcia melanoleuca |
| Wood Duck | Aix sponsa |
| Wood Duck | Aix sponsa |
| Wood Hoopoe | Phoeniculus purpureus |
| Wood Sandpiper | Tringa glareola |
| wood Stork | Mycteria americana |
| Wood Stork | Mycteria americana |
| Wood Stork | Mycteria americana |
| Wood Thrush | Hylochicla mustelina |
| Wood Thrush | Hylocichla mustelina |
| Wood Warbler | Phylloscopus sibilatrix |
| Woodford's Owl | Strix woodfordii |
| Wood-Rail | Aramides |
| Woolly-necked Stork | Ciconia episcopus episcopus |
| Worm-eating Warbler | Helmitheros vermivorus |
| Worthen's Sparrow | Spizella wortheni |
| Wreathed Hornbill | Aceros undulatus |
| Wrentit | Chamaea fasciata |
| Xantus's Hummingbird | Hylocharis xantusii |
| Xantus's Murrelet | Synthliboramphus hypoleucus |
| Yellow & Green Lorikeet | Trichoglossus flaviviridis |
| Yellow Bittern | Ixobrychus sinensis |
| Yellow Grosbeak | Pheucticus chrysopeplus |
| Yellow Rail | Coturnicops noveboracensis |
| Yellow Rosella | Platycercus flaveolus |
| Yellow Wagtail | Motacilla flava |
| Yellow Warbler | Dendroica petechia |
| Yellow-backed Chattering Lory | Lorius garrulus flavopalliatus |
| Yellow-backed Lory | Lorius garrulus flavopalliatus |
| Yellow-bellied Flycatcher | Empidonax flaviventris |
| Yellow-Bellied Fruit Pigeon | Treron waalia |
| Yellow-bellied Sapsucker | Sphyrapicus varius |
| Yellow-bellied Waxbill | Estrilda melanotis |
| Yellow-bibbed Lory | Lorius chlorocercus |
| Yellow-billed Amazon | Amazona leucocephala collaria |
| Yellow-billed Cardinal | Paroaria capitata |
| Yellow-billed Cuckoo | Coccyzus americanus |
| Yellow-billed Hornbill | Tockus flavirostris |
| Yellow-billed Loon | Gavia adamsii |
| Yellow-billed Magpie | Pica nuttalli |
| Yellow-billed Magpie | Pica nuttalli |
| Yellow-billed Spoonbill | Platalea flavipes |
| Yellow-billed Stork | Mycteria ibis |
| Yellow-breasted Bunting | Emberiza aureola |
| Yellow-breasted Chat | Icteria virens |
| Yellow-breasted Fruit Dove | Ptilinopus occipitalis |
| Yellow-breasted Toucan | Ramphastos ambiguus ambiguus |
| Yellow-cheeked Amazon | Amazona autumnalis autumnalis |
| Yellow-cheeked Conure | Aratinga pertinax |
| Yellow-collared Lory | Lorius chlorocercus |
| Yellow-collared Macaw | Ara auricollis |
| Yellow-crowned Amazon | Amazona ochrocephala ochrocephala |
| Yellow-crowned Night-Heron | Nyctanassa violacea |
| Yellow-eyed Junco | Junco phaeonotus |
| Yellow-faced Amazon | Amazona xanthops |
| Yellow-faced Grassquit | Tiaris olivacea |
| Yellow-faced Mynah | Mino dumontii |
| Yellow-footed Gull | Larus livens |
| Yellow-fronted Amazon | Amazona ochrocephala |
| Yellow-fronted Parakeet | Cyanoramphus auriceps |
| Yellow-fronted Woodpecker | Melanerpes flavifrons |
| Yellow-green Vireo | Vireo flavoviridis |
| Yellow-headed Amazon | Amazona oratrix oratrix |
| Yellow-headed Blackbird | Xanthocephalus xanthocephalus |
| Yellow-headed Vulture | Cathartes burrovianus |
| Yellowish-breasted Racquet-tail | Prioniturus flavicans |
| Yellow-legged Gull | Larus cachinnans |
| Yellow-lored Amazon | Amazona xantholora |
| Yellow-naped Amazon | Amazona auropalliata auropalliata |
| Yellow-naped Macaw | Ara auricollis |
| Yellow-nosed Albatross | Thalassarche chlororhynchos |
| Yellow-ridged Toucan | Ramphastos dicolorus culminatus |
| Yellow-rumped Cacique | Cacicus cela |
| Yellow-rumped Tinkerbird | Pogoniulus bilineatus |
| Yellow-rumped Warbler | Dendroica coronata |
| Yellow-shouldered Amazon | Amazona barbadensis barbadensis |
| yellow-shouldered Blackbird | Agelaius xanthomus |
| Yellow-sided Conure | Pyrrhura molinae hypoxantha |
| Yellow-streaked Lory | Chalcopsitta sintillata sintillata |
| Yellow-tailed Black Cockatoo | Calyptorhynchus funereus |
| Yellow-tailed Caique | Pionites leucogaster xanthurus |
| Yellow-thighed Caique | Pionites leucogaster xanthomeria |
| Yellow-throated Hanging Parrot | Loriculus pusillus pusillus |
| Yellow-throated Laughing Thrush | Garrulax galbanus |
| Yellow-throated Vireo | Vireo flavifrons |
| Yellow-throated Warbler | Dendroica dominica |
| Yellow-winged Amazon | Amazona aestiva xanthopteryx |
| Yucatan Vireo | Vireo magister |
| Yuma clapper Rail | Rallus longirostris yumanensis |
| Zebra Dove | Geopelia striata |
| Zebra Finch | Taeniopygia guttata |
| Zenaida Dove | Zenaida aurita |
| Zoe's Imperial-Pigeon | Ducula zoeae |
| Zone-tailed Hawk | Buteo albonotatus |
