The Hooded Grebe breeds in highland lakes in southern Argentina and is also recorded at Atlantic estuaries in winter.
The chick’s plumage differs from the adult plumage. A study reports that it takes about seven months for the bird to reach adult plumage.
It breeds from October to March on basaltic lakes and builds nests among aquatic plants. It eats aquatic invertebrates and has been recorded at estuaries on Argentina’s Atlantic coast in winter.
Outside the breeding season, it also uses coastal waters and lowland lakes, often in the company of Silvery Grebes.
It nests in colonies during the breeding season, building floating nests among aquatic vegetation in lakes.
Its black hood contrasts with a white forehead and golden crown plumes. The wings are mostly white, unlike the dark wings with a white rear patch of the Silvery Grebe.
An extinction-risk assessment has not been added yet.