Genus Nomonyx

St. Domingo duck - The Masked Duck is a small stiff-tailed duck ranging through the tropical Americas. They are found from Mexico to South America and also in the Caribbean. Primarily non-migratory, Masked Ducks are reported as very uncommon vagrants in the southernmost United States, along the Mexican border and in Florida.

Order : Anseriformes
Family : Anatidae
Genus : Nomonyx