Ключевые слова: anas, anas penelope, anatidae, anatinae, animal, animals, anseriformes, asia, asian, aves, bird, birds, duck, ducks, eurasia, eurasian, eurasian wigeon, europe, european, fauna, float, floating, lake, male, mareca, mareca penelope, natural, nature, one, one animal, river, swim, swimming, water, waterbird, wigeon, wild, wild animal, wild life, wildlife, zoo,