Ключевые слова: aerial, air, autumn, bird, black, blue, bottom, central, close, crowd, crows, environment, europe, fall, flight, flock, fly, formation, geneva, grass, green, group, landscape, lausanne, lavaux, many, migrate, migrating, migration, montreux, motion, nature, outdoor, pattern, rare, row, silhouette, sky, south, sun, switzerland, up, vaud, view, vineyard, wild, wildlife, wing,