Ключевые слова: acceleration, animal, animals, avian, background, beak, beautiful, beauty, biology, bird, bird watching, birds, birds in flight, black, cacophony, cloudy, ducks, environment, europe, fauna, flight, flock, flying, garda, group, italy, lake, large, mass, migrating, mountain, national, natural, nature, ornithology, outdoor, overcast, reflection, take off, tourism, travel, view, water, white, wild, wildlife, wings, wingspan,