Ключевые слова: alive, animal, aves, background, beak, bill, biodiversity, biology, bird, birding, birdwatching, black, blooded, branch, conservation, day, ecology, environment, environmental, fauna, feathers, gray, grey, horizontal, life, limb, living, looking, natural, nature, organism, ornithology, outdoors, outside, perch, pine, science, songbird, tree, vegetation, vertebrate, warbler, warm, white, wild, wilderness, wildlife, wings, yellow, zoology,