Ключевые слова: animals, biddy, birds, calm, chick, chickens, cygnini, cygnus olor, dugs, europe, existing, fledgling, gender, germany, juvenile, lake, lake kummerow, life, live, mute swan, pup, quiet, rest, safari, sea, security, squab, survival, survive, swan, swimming, water birds, waterfowl, western pomerania, wildlife, young animal,