Ключевые слова: adult, animal, atra, avian, beach, beak, beautiful, beauty, bird, black, coat, cold, common, coot, danube, delta, eurasian, feather, fly, flying, foot, fowl, frozen, fulica, horizontal, ice, lake, landscape, nature, one, outdoor, over, pen, plumage, pond, reflection, river, sand, sea, snow, surface, swim, water, waterbird, waterfowl, white, wild, wildlife, winter,