Brazilian Teal live in pairs or in small groups of up to twenty birds.

Several of these, such as the Brazilian Teal, were subsequently assigned to the Anatinae.

Brazilian Teal or Brazilian Duck (Amazonetta brasiliensis)

The Brazilian Teal or Brazilian Duck (Amazonetta brasiliensis) is the only duck in the genus Amazonetta.

A. brasiliensis ipecutiri (Greater Brazilian Teal), found in Brazil, Northern Argentina, eastern Bolivia, Uruguay, and Paraguay.

A. brasiliensis brasiliensis (Lesser Brazilian Teal), the nominate race, found in Brazil, Suriname, Guyana, French Guiana, central Venezuela, eastern Colombia, and northeastern Peru.

Brazilian Teal or Brazilian Duck (Amazonetta brasiliensis)

The Brazilian Teal or Brazilian Duck (Amazonetta brasiliensis) is the only duck in the genus Amazonetta.

It is often placed in Anas with most other dabbling ducks, but its closest relative is either the Crested Duck or the Brazilian Duck, which likewise form monotypic genera.

Brazilian Teal or Brazilian Duck (Amazonetta brasiliensis)

The Brazilian Teal or Brazilian Duck (Amazonetta brasiliensis) is the only duck in the genus Amazonetta.