Ключевые слова: agitated, albellus, aspect, beak, bif, big, bird, body, breeding, close, disturbed, duck, entire, excited, fast, flight, fly, flying, forward, full, hand, legs, line, mergellus, open, part, party, prompt, quick, rapid, rare, side, sky, smew, span, speedy, spreaded, spring, straight, stretched, tail, tight, total, way, wild, wildlife, wings, wingspan, wingspread, worry,