Coscoroba Swan

The coscoroba swan (Coscoroba coscoroba) is a species of waterfowl in subfamily Anserinae of the family Anatidae. It is found in Argentina, Bolivia, Brazil, Chile, Paraguay, Uruguay, and the Falkland Islands. The coscoroba is the smallest swan at 90 to 115 cm long with a wingspan of about 155 cm. Their appearance is intermediate between those of geese and other swans. The sexes have the same plumage; adults are white except for black tips to the outer six primary feathers. Although this black is often barely visible on the closed wing it is conspicuous in flight. Their beak, legs, and feet are red. The cygnet is grayish white to brownish with a black cap and a blue-gray bill, and attains adult plumage at about eight months of age.