Ключевые слова: anas, animal, avian, beauty, bird, birdwatching, blue, brown, cold, duck, feather, feeding, female, flight, floe, fly, flying, fowl, green, head, ice, lake, male, mallard, natural, nature, ornithology, outdoor, outside, platyrhynchos, pond, reflection, river, snow, water, waterbird, waterfowl, white, wild, wildlife, wing, winter,