Ключевые слова: agriculture, american, animals, background, beak, beautiful, birds, birdwatching, breed, brown, cute, domesticated, duck, farming, feathers, food, fowl, goose, grass, green, head, lake, life, livestock, mallard, meat, nature, neck, orange, ornithology, outdoors, park, pekin, peking, pet, pond, poultry, river, roast, spring, summer, swimming, traditional, water, waterfowl, white, wild, wildlife, wing, yellow,