Ключевые слова: anas, anas platyrhynchos, animal, animals, beak, beautiful, bird of passage, birds, blue, brown, close up, duck, ecology, environment, environmental, eye, female, female duck, head, lake, local, mallard, mallard duck, nature, orange, platyrhynchos, plumage, pond, river, river duck, seasonal, sunny, swimming, water, waterbirds, wild, wild animals, wildfowl, wildlife, wing, yellow,