Ключевые слова: adult, air, animals, beak, beautiful, biology, bird, blue, children, cleanliness, comeback, crane, cranes, ecology, elegance, environment, family, father, fidelity, flight, flying, freedom, home, landscape, life, migrating, migration, nature, neck, ornithology, outdoors, parents, persistence, protection, relax, reserve, return, returning, safety, science, seaside, season, sky, tenderness, together, travel, wildlife, wing, young,