Ключевые слова: animal, aquatic, avian, background, beak, beautiful, beauty, bird, birdwatching, brown, color, country, countryside, domestic, duck, duckling, family, farm, feather, field, fowl, grass, green, hunting, landscape, mallard, meadow, migratory, natural, ornithology, outdoor, park, peck, pet, pond, pool, quack, spring, summer, swim, three, vertebrate, water, waterbird, waterfowl, wild, wildfowl, wildlife, wing,