Ключевые слова: animal, aquatic, atra, avian, beautiful, beauty, bird, birds, birdwatching, black, chick, colorful, common, coot, cute, duck, duckling, environment, eurasian, family, fauna, feathers, fulica, lake, little, natural, nature, ornithology, outdoor, plumage, pond, river, small, spring, swamp, swimming, water, waterfowl, wetland, wild, wildlife, young,