Body: Large duck, up to 3 pounds, 18-21 inches long. Grayish white with heavy vermiculation. Black chest and rump. Head and neck burnished red. Forehead slopes into elongated black bill. Eyes red. Feet gray. Wings: Grayish white coverts and tertials. Pearl gray speculum; remainder dark gray. Voice: Croak, peep and growl. In Flight: Feet outstretched beyond tail. Elongated neck and body. White belly contrasts with black chest and rump.
