Ключевые слова: animal, beak, bill, biology, bird, blackbird, bluebird, bobolink, bobwhite, bullfinch, bustard, buzzard, cage, catbird, creature, crow, eagle, egret, emu, falcon, feather, finch, fledgling, flicker, flier, fly, goldfinch, grosbeak, halcyon, hobby, hummingbird, ibis, jackdaw, kite, lark, linnet, living, mammal, marten, mocker, natural, nature, nestling, nun, oriole, ornithology, owl, partridge, peacock, pewee, pheasant, phoebe, phoenix, predator, quill, raven, robin, rook, ruff, sandpiper, skylark, snipe, sparrow, squab, starling, sun conures, swallow, tanager, tern, thrasher, warbler, waxwing, wilderness, wings, woodpecker, wren, zoological,