This duck breeds at lakes with rich vegetation and uses freshwater lakes and reservoirs in winter. Breeding males have a green gloss on the head.
In breeding plumage, the male has a green gloss on the head and neck, a chestnut breast, and chestnut-and-white flanks. The female has a dark brown head with a brown breast and flanks.
It breeds at lakes and wetlands rich in vegetation and uses freshwater lakes and reservoirs in winter.
An extinction-risk assessment has not been added yet.