Ключевые слова: alive, animal, beak, bill, biodiversity, biology, bird, birding, birdwatching, black, brown, conservation, ecology, environment, environmental, fauna, feathers, flight, fly, flying, gray, grey, horizontal, ice, icy, leaves, life, living, natural, nature, organism, ornithology, outdoor, outside, passerine, scene, scenery, scenic, science, songbird, vertebrate, warbler, warmblooded, white, wild, wildlife, wing, winter, yellowrumped, zoology,