Order Anseriformes Wagler, 1831 - waterfowl and screamers Suborder Anseres Linnaeus, 1758 - waterfowl Family Anatidae Vigors, 1825 - ducks, geese, swans Subfamily Anseranatinae Stejneger, 1885 - pied geese see Family Anseranatidae Sclater, 1880