Ключевые слова: air, alpine, alpine chough, alps, altitude, animal, background, bill, bird, birds, black, chough, closeup, common, corvid, crow, dark, detail, europe, eye, feather, flight, foraging, habitat, head, isolated, large, mountains, natural, naturally, outdoor, passerine bird, perching, portrait, rocks, sky, small, songbird, speed, stone, swiss alps, switzerland, wild, wildlife, wing, wings, winter, yellow, yellowbilled chough,