Guide to North American Birds

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Breeding adult male. Photo: Becky Matsubara/Flickr (CC BY 2.0)

Ring-necked Duck

Aythya collaris

Although it mixes freely with other diving ducks on large lakes in winter, the Ring-neck is also found on small, tree-lined ponds, and associating with dabbling ducks on shallow waters. A strong and fast flier, it is able to take flight by springing up directly from the water, without the laborious take-off run of most diving ducks. Despite the name, the ring on its neck is almost never visible.

Conservation status	Numbers apparently stable. Since about the 1930s, has become a much more widespread and numerous breeding bird in eastern Canada and northern New England.
Family	Ducks and Geese
Habitat	Wooded lakes, ponds; in winter, also rivers, bays. In summer on freshwater marshes, ponds, and bogs, mainly in openings in forested country. In migration and winter on ponds, lakes, slow-moving rivers, sometimes on coastal estuaries, but generally not on saltwater bays.

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Feeding Behavior

Forages by diving, usually in water a few feet deep. Also forages at surface and sometimes up-ends in shallows. Opportunistic, it may move into flooded fields to feed.

Eggs

8-10, sometimes 6-14. Vary in color: olive-gray, pale brown, pale buff. Incubation is by female only, 25-29 days. Young: female leads young to water 12-24 hours after they hatch; young may return to nest at night. Unlike many diving ducks, female and brood often hide in marsh rather than seeking safety on open water. Young find their own food, are capable of flight 49-55 days after hatching. Female may remain with young until they are old enough to fly, unlike most ducks.

Young

female leads young to water 12-24 hours after they hatch; young may return to nest at night. Unlike many diving ducks, female and brood often hide in marsh rather than seeking safety on open water. Young find their own food, are capable of flight 49-55 days after hatching. Female may remain with young until they are old enough to fly, unlike most ducks.

Diet

mostly aquatic plants, insects. Diet varies with season and habitat. Feeds on seeds, stems, and roots of many aquatic plants, including pondweeds, sedges, smartweeds, grasses, algae, and others. Also eats aquatic insects and mollusks. Young ducklings feed mainly on insects.

Nesting

Pair formation activity begins in winter. Courtship displays by male include laying head far back and then thrusting it forward; also swimming with head feathers erected, nodding rapidly. Nest site is on dry hummock, clump of brush, or mat of floating vegetation, close to open water. Nest is shallow bowl of grasses, sedges, weeds, lined with down.

Illustration © David Allen Sibley.
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Text © Kenn Kaufman, adapted from
Lives of North American Birds

Migration

Migrates in flocks. Migration is relatively late in fall and early in spring.

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Migration

Migrates in flocks. Migration is relatively late in fall and early in spring.

All Seasons - Common
All Seasons - Uncommon
Breeding - Common
Breeding - Uncommon
Winter - Common
Winter - Uncommon
Migration - Common
Migration - Uncommon

Songs and Calls

Soft purring notes, but usually silent.

Audio © Lang Elliott, Bob McGuire, Kevin Colver, Martyn Stewart and others.
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How Climate Change Will Reshape the Range of the Ring-necked Duck

Audubon’s scientists have used 140 million bird observations and sophisticated climate models to project how climate change will affect this bird’s range in the future.

Zoom in to see how this species’s current range will shift, expand, and contract under increased global temperatures.

Climate Threats Near You

Climate threats facing the Ring-necked Duck

Choose a temperature scenario below to see which threats will affect this species as warming increases. The same climate change-driven threats that put birds at risk will affect other wildlife and people, too.