Whistling Swan

Whistling SwanThe whistling swan's voice is not so much a whistle as it is like soft musical laughter varied with long whoops and clucking sounds. They nest by the thousands around small lakes and on islands far north of the Arctic Circle. In summer after the adults have molted their flight feathers there is a period when they cannot fly.  In autumn they gather into large flocks, head into the wind, and laboriously take off on their long trip to the south Atlantic coast. Once airborne, they travel at high speeds, often above the clouds.