Bird next to human hand, illustration
Biological classification, illustration
Head of a bird, illustration
Tui bird, 18th century artwork
Bird skeleton, illustration
Penguin heads, artwork
Location of pelvis part of chimpanzee skeleton, illustration
Whiskered and natterer's bats, illustration
Male superb lyre bird, illustration
Indian roller bird, artwork
Rufous treepie bird, artwork
Drongo bird, artwork
Veery bird, artwork
Terror bird, artwork
Toucan, illustration
Jacana walking over floating vegetation, illustration
Sparrow speciation, illustration
Kingfisher and young, illustration
Roseate spoonbill, illustration
Tree sparrow (Passer montanus), illustration
Golden pheasants, illustration
Carolina parakeets, artwork
Huias, artwork
Ivory-billed woodpecker, artwork
Linnet, artwork
Bearded tits, artwork
Great reed warbler, artwork
Schegel's francolin, artwork
Little grebe, historical artwork
Storm petrel, historical artwork
Ruff, historical artwork
Sandpiper, historical artwork
Diatryma gigantea extinct bird, illustration
Cuvier's kinglet bird, artwork
Turtle dove in flight, illustration
Feather, illustration
Jamaica bird, 19th Century illustration
Secretary bird, 19th Century illustration
Bird eggs in nest hatching, illustration
Bird-of-prey hunting, 19th century
Black-winged stilt wading bird, artwork
King bird-of-paradise, 19th century illustration
Bird of prey holding nestling in talons, illustration
Bird pulling a worm from a tree trunk, illustration
Handsome francolin feathers, artwork
Red-Cockaded woodpecker, artwork
Bluebirds and Warbler, artwork
Pink footed Goose beak, artwork
Pink footed Goose, artwork
Green woodpecker birds, artwork
Rabbit jumping over tortoise, illustration
Blue tit, illustration
Bird skeleton, historical artwork
Wallcreeper bird, artwork
Silver eared mesia bird, artwork
Brazil bird, 19th Century illustration
Chicken anatomy, 19th Century illustration
Bird of paradise, 19th Century illustration
Two blue bird-of-paradise birds, artwork
Wilson's bird-of-paradise, 19th century illustration
South African penguin, illustration
Raven, illustration
North American kestrel with prey, illustration
Kite skeleton, illustration
Red-winged parrot, illustration
Varied lorikeet, illustration
Turquoise parrot, illustration
Gouldian finch, illustration
Black-throated trogon, illustration
Channel-billed toucan, illustration
Cassowary, 19th Century illustration
Sunbittern, 19th Century illustration
Xanthorus aurantius, 19th C illustration
Ostrich, 19th Century illustration
Crowned crane, 19th Century illustration
Great bustard, 19th Century illustration
Sandhill crane, 19th Century illustration
Flycatcher, 19th Century illustration
Sparrows, 19th Century illustration
Spruce grouse, 19th Century illustration
Ptarmigan, 19th Century illustration
Barred warbler, 19th Century illustration
Finch, 19th Century illustration
Great curassow, 19th Century illustration
Swift, 19th Century illustration
Finch, 1849 illustration
Machetes pugnax, 1849 illustration
Helmeted guineafowl, illustration
Tawny owl, illustration
Dalmatian pelican, 19th Century illustration
Great argus, 19th Century illustration
Screamer, 19th Century illustration
Red-legged partridge, illustration
Pied avocet, 19th Century illustration
Western tragopan, illustration
Hoopoe, 19th Century illustration
Woodpecker, 19th Century illustration
Two Night Parrots, artwork
Finches and Tanagers, artwork
Red-breasted Merganser ducks, artwork
Barrow's Goldeneye, artwork
Black-necked grebe, artwork
Semipalmated sandpiper, artwork
Trumpter swan, artwork
Light-mantled albatross, artwork
Foster's Tern & Trudeau's Tern, artwork
Gull-billed tern, artwork
Tundra swan, artwork
Cormorants, artwork
Californian quail, artwork
Brown creeper and Pygmy nuthatch, artwork
Woodpeckers, artwork
Rock and white tailed ptarmigans, artwork
Group of birds, artwork
Rough-legged Buzzards, artwork
Crested bobwhite and Mountain quail
Anna's hummingbird, artwork
Californian condor, artwork
Surfbird, artwork
Greater flamingo, artwork
Group of song birds, artwork
Flycatchers and vireos, artwork
American dipper, artwork
Jays, magpies, and Nutcracker, artwork
Pairs of Warblers, artwork
Mating dances of cranes, illustration
Rainbow lorikeets, 19th century illustration
Kestrel hanging in air, illustration
Kingfisher, illustration
Great frigatebird, illustration
Snail kite, illustration
Common ostriches, 19th century illustration
Birds flying high, illustration
Grey heron, illustration
Green parrot with blue tail feathers, illustration
Great-crested grebes courtship routine, illustration
Southern brown kiwi, illustration
Adult male condor, 19th century illustration.
Adult female condor, 19th century illustration.
California condor, 19th century illustration
Griffon vulture, 19th century illustration
Shoebill, 19th century illustration
Parrots, 19th Century illustration
Pied wagtail on stone, illustration
Pied wagtail, illustration
Bullfinch perched on a blossoming branch, illustration
Coal tit perched on branch, illustration
Chicken embryo, 17th Century artwork
Skull of a dodo, 1848 artwork
Asian game birds, 19th century
Great Auk, artwork
Passenger pigeon, artwork
Carolina parakeet, artwork
Prairie hen, 19th century artwork
Mascarene parrot, 18th century artwork
Polish swan, 19th century artwork
Garganey, 19th century artwork
Corn crake, 19th century artwork
Spotted crake, 19th century artwork
Great crested grebe, 19th century artwork
Little auk, 19th century artwork
Atlantic puffin, 19th century artwork
Northern gannet, 19th century artwork
Roseate tern, 19th century artwork
Iceland gull, 19th century artwork
Lesser black-backed gull, 1866 artwork
Long-tailed skua, 19th century artwork
Bulwer's petrel, 19th century artwork
Wilson's petrel, 19th century artwork
Leach's petrel, 19th century artwork
Storm petrel, 19th century artwork
Eskimo curlew, 19th century artwork
Swift tern, 19th century artwork
Ross's gull, 19th century artwork
Little gull, 19th century artwork
Grey and red junglefowl, artwork
Birds-of-paradise, 19th century
Hispaniolan macaw, 20th century
Rose-ringed parakeet, 19th century
Alexandrine parakeet, 19th century
European robin
Great blue heron, 18th century
Domestic pigeon, artwork
Himalayan treecreeper, artwork
Little egret, artwork
Short-toed eagle, artwork
Dusky eagle owl, artwork
Kalij pheasant, artwork
Common hill partridge, artwork