Ducks, Geese and Swans (Anatidae)

Brazilian Merganser (Mergus octosetaceus) - HBW 1, p. 625

French: Harle huppard German: Dunkelsäger Spanish: Serreta Brasileña

Taxonomy: Mergus octosetaceus Vieillot, 1817, Brazil.
Monotypic.

Distribution: SE Brazil, E Paraguay (Alto Paraná), NE Argentina (Misiones).