Ключевые слова: animal, animals, background, beak, bird, birds, birdwatching, blue, brown, concept, drake, duck, duck swimming, ducks, ducks in a row, ducks lake, ducks swimming, ducks water, ecology, environment, feather, flight, fowl, green, head, lake, mallard, natural, nature, outdoor, park, partners, platyrhynchos, pond, protection, puddle, reflection, river, summer, swim, swimming, water, waterbird, waterfowl, wetland, white, wild, wildlife, wings,