Crested Duck
Lophonetta specularioides
- Least concern
- Card rarity: Common
- Birds

The crested duck or South American crested duck is a species of duck native to South America, belonging to the monotypic genus Lophonetta. It is sometimes included in Anas, but it belongs to a South American clade that diverged early in dabbling duck evolution. There are two subspecies: L. specularioides alticola and L. specularioides specularioides. The Patagonian crested duck is also called the southern crested duck and its range lies in the Falklands, Chile, and Argentina.
Classification
- Class
- Aves
- Order
- Anseriformes
- Family
- Anatidae
- Genus
- Lophonetta