A duck of shallow wetlands in eastern North America. It is dark brown overall and can be hard to distinguish among Mallards.
The body is dark brown and the head is pale gray-brown. Males have yellow bills, females dull olive bills, and the underwings look white in flight.
It feeds in the shallows of ponds and salt marshes on aquatic plants and small animals, and may mix with Mallards. Hybrids with Mallards occur in eastern North America.
An extinction-risk assessment has not been added yet.