Ключевые слова: and, animal, animals, austria, austrian, avian, beak, beauty, bird, birds, central, colored, environment, europe, european, feather, in, living, migrants, migratory, multi, natural, nature, of, one, organism, ornithology, outdoors, passage, pets, singing, song, songbird, the, thrush, thrushes, wild, wildlife, wing, worl,