Ключевые слова: alba, ardea, beak, bif, big, bird, call, calling, clean, clear, colorful, common, coverts, crisp, cry, crying, delicate, egret, elegant, entire, fast, feathering, feathers, fine, flight, fly, flying, graceful, great, grey, heron, large, neat, neck, noise, open, outcry, plumage, quick, rapid, sharp, shout, sky, speedy, spring, stretched, total, white, wings,