General

Ring-necked Duck: Medium-sized diving duck with black upperparts and weakly tufted, glossy purple-black head. Neck, upper breast, and tail are black, lower breast and belly are white, and sides are pale gray. Cinnamon collar is hard to see in the field. Bill is blue-gray with white ring and black tip. Wings are dark with black-tipped gray flight feathers visible in flight. Female is brown overall with gray face and throat, white eye-ring and weak eyestripe, and white patch at base of bill. Juvenile resembles female. Eclipse male resembles breeding male but is duller and has darker sides.

Range and Habitat

Ring-necked Duck: Breeds from Alaska, Manitoba, and Newfoundland south to California, Arizona, the Great Lakes, and Maine. Spends winters from Washington south along the Pacific coast, east through the southwest and the Gulf Coast states and north to New England. Found on wooded lakes, ponds, and rivers; seldom seen on saltwater except in the southern states.

Breeding and Nesting

Ring-necked Duck: Six to fourteen olive, gray, olive brown, or green buff eggs are laid in a down-lined ground nest concealed in vegetation near the edge of a pond. Incubation ranges from 25 to 29 days and is carried out by the female.

Foraging and Feeding

Ring-necked Duck: Eats mostly aquatic plants and seeds, but also feeds on insects, mollusks, worm, and crustaceans; forages by diving from the water surface.

Vocalization

Ring-necked Duck: Makes a faint, wheezy whistle.

Similar Species

Ring-necked Duck: Greater and Lesser scaups lack white ring on bills. Tufted Duck has a more rounded head with a tuft on back of crown.