Black-necked swans are native to south coastal South America and inland lakes in the Neotropical region. Black-necked swans breed in Patagonia, Tierra del Fuego, and the Falkland Islands. In winter they migrate northward to Paraguay and southern Brazil.
Biogeographic Regions: neotropical (Native )
- Dunning, J. 1987. South American Birds-A Photographic Aid to Identification. Newton Square, Pennsylvania: Harrowood Books.
- Fjeldsa, J., N. Krabbe. 1990. Birds of the High Andes. Copenhagen, Denmark: Zoological Museum, University of Copenhagen.