Ключевые слова: africa, african, america, american, anatidae, animal, animals, anseriformes, asia, asian, aves, bird, birds, dendrocygna, dendrocygna bicolor, dendrocygninae, duck, ducks, fauna, fulvous tree duck, fulvous whistling duck, india, lake, mexico, natural, nature, one, one animal, pond, river, south america, south american, swim, swimming, tree duck, water, whistling duck, wild, wild animal, wild life, wildlife, zoo,