Wikipedia
The crested duck (Lophonetta specularioides) is a species of duck native to South America, the 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 ( Andean crested duck) and L. specularioides specularioides ( Patagonian crested duck). The Patagonian crested duck is also called the southern crested duck and its range lies in the Falklands, Chile, and Argentina.
It feeds on invertebrates and algae, and prefers shallow coastal regions. It nests in tall grass near water and lays 5 to 7 eggs.
Usage examples of "crested duck".
The monastery of which Eduardo had spoken was five days journey to the south-east, but the prospect of the altiplano rheas, the salt lakes with their different kinds of flamingo, and the unending deserts of pure white salt itself lent Stephen Maturin wings and, helped by unnaturally kind weather, they reached the high lonely mission in four although they were loaded with the spoils of Lake Titicaca - the skins of two flightless grebes, two different species of ibis, a crested duck and some rails, together with plants and insects.