Ducks; geese; swans; screamers WordNet 3.0

Ducks, geese, swans, screamers Open English WordNet

Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae, Anseranatidae, and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans. Wikipedia

Order of birds Wikidata

An order (Anseriformes) of birds with webbed feet; most of them still dwelling in water. OmegaWiki