Ключевые слова: animal, beak, beautiful, biology, birds, birdwatching, brown, deep, duck, eyes, feather, gradient, green, lake, mallard, natural, nature, one, ornithology, outdoor, outside, park, pond, reflection, reflections, river, seasonal, sunlight, sunshine, swim, tranquil, tufted, water, waterfowl, wave, wild, wildlife, wings,