Ключевые слова: above, action, active, air, animal, avia, beak, bird, birding, catch, chicks, coast, common tern, courtship, cute, eating, fast, fauna, feather, feathery, feed, fight, fish, fisher, flight, flit, fly, hirundo, juvenile, lake, natural habitat, nature, ornithology, ritual, river, rock, sea, seabird, sky, sterna, sterna hirundo, sternidae, stone, tern, wild, wilderness, wildlife, wing, wingspan, young,