The giant coot has a red bill and legs and a yellow frontal shield. It lives on high Andean lakes and builds a large nest platform from aquatic plants.
The head and neck are black, and the body is dark slate-gray. The bill is reddish with a yellow tip; the yellow frontal shield has a pale center. The legs are red.
It lives on high lakes with little aquatic vegetation and builds a large platform nest from aquatic plants. The source describes these lake habitats at 3,000–4,000 m.
An extinction-risk assessment has not been added yet.