Coscoroba Swan

The Coscoroba Swan (Coscoroba coscoroba) is a species of waterfowl inhabiting southern South America. It is the smallest of the birds called "swans", but still a large species of waterfowl, averaging 4.2 kg (9.3 lbs), 1 m (3.3 ft) long and 1.57 m (5.2 ft) across the wings. It belongs to the subfamily Anserinae in the family of ducks, swans, and geese, Anatidae. It is placed in the monotypic genus Coscoroba.