Markhor goats, 19th century artwork
Black rat, 19th century artwork
Javan rhinoceros, 19th century artwork
Goat's hoof, illustration
Prairie hen, 19th century artwork
Tangier, Morocco, 19th Century illustration
Wolves hunting a stag, 19th century
Bactrian camel, 19th Century illustration
Giraffe, 19th Century illustration
Reindeer, 19th Century illustration
Elk, 19th Century illustration
Sanga cattle, 19th century
South American camelid, 17th century
Monkey skeleton, 18th century
Schomburgk's deer, 19th century artwork
Ring-tailed iguana, 19th century artwork
Primates, 19th century
Bird-of-prey hunting, 19th century
Graomys mouse, Zoology of the Beagle
Barred owl and prey, artwork
Northern saw-whet owl, artwork
Cebid monkey, 19th century
Fruit bat, 19th Century illustration
Greater bulldog bat, 19th Century illustration
Lion, 19th Century illustration
Woolly mammoth, 19th century artwork
Lump-nosed bat, 19th century
Vampire bat, Zoology of the Beagle
Brazilian marmosets, 17th century
Zebra, 17th century
Nubian ibex, 19th century
Mammals, antilocapridae, illustration
Night monkey, 19th century artwork
Loris and bushbaby, 19th century artwork
Brown bear, 19th century
Giraffe, 17th century illustration
Man measuring a giraffe using a pole weapon, illustration
Giraffe hunting in South Africa, 18th century illustration
Prairie warblers, artwork
Llama, 19th Century illustration
South American freshwater fish, 19th century
Indian tapir, 19th Century illustration
Horse, 19th Century illustration
Donkey, 19th Century illustration
Hippopotamus, 19th Century illustration
Water buffalo, 19th Century illustration
Evolution of mammals, 19th Century illustration
Arabian horse, 19th Century illustration
Elk, 19th century
Norway lemming, 19th century
Iguanodon and Hylaeosaurus, 19th century
Tiger and crocodile, 19th century
Loris, 19th century
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
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
Birds-of-paradise, 19th century
Rose-ringed parakeet, 19th century
Alexandrine parakeet, 19th century
Himalayan treecreeper, artwork
Common hill partridge, artwork
Indian roller bird, artwork
Rufous treepie bird, artwork
Eurasian jay, artwork
Drongo bird, artwork
Domestic Pigeon, artwork
Green Turaco, artwork
South American painted snipe, artwork
Pink footed Goose beak, artwork
Pink footed Goose, artwork
Penguin heads, artwork
Cheer pheasant, artwork
Brown Kiwi, artwork
Long billed Pipit, artwork
Spectacled cormorant, artwork
Owl Parrot, artwork
Four subspecies of Blue Tit, artwork
White-throated bee-eater, artwork
Northern Eagle-Owl, artwork
Green woodpecker birds, artwork
Wild Turkey, artwork
Yellow-billed cuckoo, artwork
Prothonotary warblers, artwork
Purple finches, artwork
Canada Warbler, artwork
Two common grackles, artwork
Hooded Warbler, artwork
Two Water Pipit, artwork
Bald Eagle, artwork
Three Baltimore orioles, artwork
Peregrine falcons, artwork
Two mourning doves, artwork
Bewick's wren, artwork
Louisiana waterthrush, artwork
Blue-winged warblers, artwork
Purple martins and nest, artwork
Common yellowthroat, artwork
Carolina parakeets, artwork
Red-headed woodpeckers, artwork
Blue-headed Vireos, artwork
Pine warbler, artwork
Black-billed cuckoos, artwork
American goldfinches, artwork
Worm-eating warblers, artwork
Yellow warbler, artwork
Cooper's hawk observing prey, artwork
Northern flicker birds, artwork
Kentucky warblers, artwork
Tufted titmouse, artwork
American redstarts, artwork
Ruffed Grouse, artwork
Orchard orioles, artwork
Cedar Waxwings, artwork
Summer tanagers, artwork
Willow flycatcher, artwork
Ruby throated hummingbird, artwork
Cerulean warblers, artwork
Magnolia warbler, artwork
Red-tailed hawks and prey, artwork
Chuck-will's widow birds, artwork
Painted Buntings, artwork
Two bobolinks, artwork
Cuvier's kinglet bird, artwork
Pair of red-shouldered hawks, artwork
Loggerhead Shrikes, artwork
Hermit Thrush, artwork
Chestnut-sided warblers, artwork
Carbonated warblers, artwork
Great-horned owl, artwork
White-eyed vireo, artwork
Swamp sparrow, artwork
Three ivory-billed woodpeckers, artwork
Cliff swallows nesting, artwork
Bay-breasted warblers, artwork
Henslow's sparrow, artwork
Red-shouldered hawk and prey, artwork
Eastern Kingbirds, artwork
Osprey, artwork
Rose-breasted grosbeaks, artwork
American Robins, artwork
Black-backed woodpeckers, artwork
Blackpoll Warbler, artwork
Blackburnian warbler, artwork
Eastern meadowlark, artwork
Yellow-breasted chat, artwork
Northern goshawk and Cooper's hawk
American Kestrels, artwork