The freshwater wetlands, rivers and lakes of southern South America...
Lophonetta specularioides, 'South American Crested Duck'.
Cygnus melancoryphus, 'Black-necked Swan'. Despite being the smallest in the Cygnus swan genus, it is the largest native waterfowl in South America. Found in both salt water and freshwater around southern South America.
Search this website and google: