Are you looking for Swan sounds? This sounds app provide collection of electronic Swan Bird calls at your fingertips. Download now and enjoy. Swan is one of the largest waterfowl species of the subfamily Anserinae, family Anatidae (order Anseriformes). Most swans are classified in the genus Cygnus. Swans are gracefully long-necked, heavy-bodied, big-footed birds that glide majestically when swimming and fly with slow wingbeats and with necks outstretched. Swans slap the water with their feet