Ключевые слова: 1, adult, anatidae, animal, anseriformes, aquatic, aquatic bird, avian, bill, bird, common, conservation, daytime, duck, duck pond, europa, fauna, feather, female, float, floating, fowl, german, habitat, horizontal, lake, merganser, mirrored, nature, ornithology, outdoors, outside, reflected, reflections, saw, season, see, spring, swim, swimming, vogel, water, water bird, wild, wilderness, wildlife,