Aves
Class Aves — 2,363 species with pages here, 1,914,166,853 occurrence records between them.
Mallard
Anas platyrhynchos · 29,616,183 records
American Robin
Turdus migratorius · 29,397,398 records
American Crow
Corvus brachyrhynchos · 29,071,260 records
European Starling
Sturnus vulgaris · 28,287,340 records
Mourning Dove
Zenaida macroura · 27,321,228 records
Northern Cardinal
Cardinalis cardinalis · 27,190,729 records
House Sparrow
Passer domesticus · 25,793,900 records
Blue Jay
Cyanocitta cristata · 24,083,169 records
Canada Goose (canadensis Group)
Branta canadensis · 23,288,753 records
Song Sparrow
Melospiza melodia · 22,454,493 records
Red-winged Blackbird
Agelaius phoeniceus · 21,104,976 records
American Goldfinch
Spinus tristis · 20,293,554 records
House Finch
Haemorhous mexicanus · 19,215,824 records
Downy Woodpecker
Dryobates pubescens · 19,063,032 records
Black-capped Chickadee
Poecile atricapillus · 18,772,803 records
Turkey Vulture
Cathartes aura · 17,636,359 records
Barn Swallow
Hirundo rustica · 17,457,901 records
Rock Pigeon
Columba livia · 15,555,389 records
Red-bellied Woodpecker
Melanerpes carolinus · 15,440,425 records
Northern Flicker
Colaptes auratus · 15,018,776 records
Dark-eyed Junco
Junco hyemalis · 14,846,642 records
White-breasted Nuthatch
Sitta carolinensis · 14,322,827 records
Great Blue
Ardea herodias · 14,190,794 records
Great Tit
Parus major · 13,999,206 records
Eurasian Blackbird
Turdus merula · 13,428,454 records
Tufted Titmouse
Baeolophus bicolor · 13,287,605 records
Great Egret
Ardea alba · 12,974,678 records
Carolina Wren
Thryothorus ludovicianus · 12,910,012 records
Red-tailed Hawk
Buteo jamaicensis · 12,453,989 records
Yellow-rumped Warbler
Setophaga coronata · 12,365,424 records
Common Grackle
Quiscalus quiscula · 12,355,864 records
Common Raven
Corvus corax · 12,288,523 records
Northern Mockingbird
Mimus polyglottos · 11,834,182 records
Ring-billed Gull
Larus delawarensis · 11,223,960 records
Eurasian Blue Tit
Cyanistes caeruleus · 11,166,172 records
European Robin
Erithacus rubecula · 10,910,255 records
Double-crested Cormorant
Phalacrocorax auritus · 10,546,526 records
Common Chaffinch
Fringilla coelebs · 10,325,673 records
Killdeer
Charadrius vociferus · 9,887,792 records
White-throated Sparrow
Zonotrichia albicollis · 9,636,124 records
Eurasian Collared-Dove
Streptopelia decaocto · 9,617,509 records
Gray Catbird
Dumetella carolinensis · 9,413,806 records
Common Wood-Pigeon
Columba palumbus · 9,376,381 records
Chipping Sparrow
Spizella passerina · 8,995,092 records
Carolina Chickadee
Poecile carolinensis · 8,637,290 records
Common Yellowthroat
Geothlypis trichas · 8,526,906 records
Brown-headed Cowbird
Molothrus ater · 8,427,780 records
Tree Swallow
Tachycineta bicolor · 8,338,291 records
Eurasian Magpie
Pica pica · 8,141,578 records
Eastern Bluebird
Sialia sialis · 8,080,916 records
Osprey
Pandion haliaetus · 7,854,090 records
Gray
Ardea cinerea · 7,828,763 records
Bald Eagle
Haliaeetus leucocephalus · 7,794,263 records
Green-winged Teal
Anas crecca · 7,563,353 records
Common Buzzard
Buteo buteo · 7,541,433 records
Hairy Woodpecker
Leuconotopicus villosus · 7,537,149 records
Ruby-crowned Kinglet
Regulus calendula · 7,511,163 records
Herring Gull
Larus argentatus · 7,289,858 records
Eastern Phoebe
Sayornis phoebe · 7,255,987 records
Cedar Waxwing
Bombycilla cedrorum · 7,250,725 records
Common Chiffchaff
Phylloscopus collybita · 7,133,520 records
Yellow Warbler
Setophaga petechia · 7,057,194 records
Belted Kingfisher
Megaceryle alcyon · 7,044,880 records
Lesser Black-backed Gull
Larus fuscus · 6,915,295 records
White Wagtail
Motacilla alba · 6,900,983 records
American herring gull
Larus smithsonianus · 6,899,110 records
Gadwall
Mareca strepera · 6,883,637 records
Black-headed Gull
Chroicocephalus ridibundus · 6,838,408 records
Great Cormorant
Phalacrocorax carbo · 6,748,212 records
Mute Swan
Cygnus olor · 6,712,550 records
White-crowned Sparrow
Zonotrichia leucophrys · 6,696,226 records
European Greenfinch
Chloris chloris · 6,646,709 records
House Wren
Troglodytes aedon · 6,609,067 records
Northern Shoveler
Spatula clypeata · 6,486,138 records
Black Vulture
Coragyps atratus · 6,464,441 records
Eurasian Blackcap
Sylvia atricapilla · 6,460,138 records
European Goldfinch
Carduelis carduelis · 6,427,410 records
Eurasian Moorhen
Gallinula chloropus · 6,081,314 records
American Coot
Fulica americana · 6,049,026 records
Common Goldeneye
Bucephala clangula · 5,959,713 records
American Kestrel
Falco sparverius · 5,944,994 records
Eurasian Coot
Fulica atra · 5,938,263 records
Red-eyed Vireo
Vireo olivaceus · 5,913,906 records
Eurasian Wren
Troglodytes troglodytes · 5,887,269 records
Red-breasted Nuthatch
Sitta canadensis · 5,798,266 records
Eurasian Kestrel
Falco tinnunculus · 5,769,186 records
Carrion Crow
Corvus corone · 5,709,900 records
Common Merganser
Mergus merganser · 5,689,444 records
Blue-gray Gnatcatcher
Polioptila caerulea · 5,513,505 records
Eastern Towhee
Pipilo erythrophthalmus · 5,395,618 records
Great Spotted Woodpecker
Dendrocopos major · 5,375,647 records
Pileated Woodpecker
Dryocopus pileatus · 5,375,192 records
Bufflehead
Bucephala albeola · 5,191,674 records
Willow Warbler
Phylloscopus trochilus · 5,166,540 records
Pied-billed Grebe
Podilymbus podiceps · 5,145,356 records
Hen Harrier
Circus cyaneus · 5,090,488 records
Red-shouldered
Buteo lineatus · 5,068,701 records
Great Black-backed Gull
Larus marinus · 5,036,634 records
Graylag Goose
Anser anser · 4,893,072 records
Western Jackdaw
Coloeus monedula · 4,775,337 records
Snowy Egret
Egretta thula · 4,756,891 records
Ruby-throated Hummingbird
Archilochus colubris · 4,599,021 records
Song Thrush
Turdus philomelos · 4,587,157 records
Northern Lapwing
Vanellus vanellus · 4,480,328 records
Eurasian Tree Sparrow
Passer montanus · 4,299,720 records
Baltimore Oriole
Icterus galbula · 4,297,701 records
Hooded Crow
Corvus cornix · 4,293,597 records
Eurasian Jay
Garrulus glandarius · 4,292,951 records
Lesser Goldfinch
Spinus psaltria · 4,255,102 records
Savannah Sparrow
Passerculus sandwichensis · 4,160,099 records
American Redstart
Setophaga ruticilla · 4,106,631 records
Indigo Bunting
Passerina cyanea · 3,988,074 records
Goldcrest
Regulus regulus · 3,984,730 records
Tufted Duck
Aythya fuligula · 3,951,066 records
Red-breasted Merganser
Mergus serrator · 3,935,996 records
Dunnock
Prunella modularis · 3,929,186 records
Eurasian Oystercatcher
Haematopus ostralegus · 3,917,381 records
Little Egret
Egretta garzetta · 3,850,714 records
Great-tailed Grackle
Quiscalus mexicanus · 3,794,609 records
Black Phoebe
Sayornis nigricans · 3,771,336 records
Showing 120 of 2,363.