8670 images 21 classes
Abyssinian Roller African Blue Tit African Crake African Darter African Desert Warbler African Skimmer Allen's Gallinule Alpine Accentor Alpine Swift American Bittern American Golden Plover American Pipit American Wigeon Aquatic Warbler Arabian Bustard Arctic Loon Arctic Tern Atlantic Puffin Atlas Flycatcher Atlas Wheatear
48562 images 555 classes
Aberts Towhee Acorn Woodpecker Allens Hummingbird Adult Male Allens Hummingbird Female immature American Avocet American Black Duck American Coot American Crow American Dipper American Goldfinch Breeding Male American Goldfinch Female or Nonbreeding Male American Kestrel Adult male American Kestrel Female immature American Oystercatcher American Pipit American Redstart Adult Male American Redstart Female or juvenile American Robin Adult American Robin Juvenile American Tree Sparrow
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