Ключевые слова: animal, aquatic, arctic, arctic tern, beacon, bird, birdhouse, birdling, brood chamber, cheeper, chick, chicken, egg, fauna, flapper, fly, housing, iceland, nature, navigation, nest, nestling, north, northern, oceanic, ornithology, pocket, poult, sea, seabird, sterna paradisaea, tern, water, wild, wildlife, wings, youngling,