Ключевые слова: adult, anas, animal, avian, background, beak, beautiful, beauty, bird, birdwatching, brown, chick, colorful, duck, ducks, eye, feather, feathers, female, fish, floating, freshwater, great crested grebe, green, hunting, isolated, lake, large, light blue, mallard, natural, nature, ornithology, outdoor, outdoors, plumage, pond, portrait, purple, rednecked grebe, river, swim, water, waterbird, waterfowl, wet, white, wild, wildlife, wing,