Ключевые слова: activity, anatidae, anatoidea, animal, anseriformes, aquatic, autumn, background, beak, bird, blue, calm, duck, evening, fall, fauna, feather, female, floating, foliage, fowl, group, leaf, light, mallard, motion, nature, ornithology, outdoor, plumage, pond, rest, ripples, season, sunlight, sunny, swim, three, tranquil, water, waterbird, waterfowl, wet, wild, wildlife, yellow, zoology,