A South American duck of freshwater habitats, Heteronetta atricapilla, known for laying its eggs in the nests of other ducks.

plural of black-headed duck

The eider.

Oxyura leucocephala, an arctic sea bird in the family Anatidae

(colloquial, rhetorical question) A rhetorical question in response to a question whose answer is an emphatic yes.

Aythya collaris, a diving duck from North America commonly found in freshwater ponds and lakes

Anas rubripes, a large dabbling duck in the family Anatidae.

(humorous) Synonym of nice weather for ducks (“rainy weather”)

(humorous) Synonym of nice weather for ducks (“rainy weather”)

(UK, obsolete, slang) A baked sheep's head.