Watercolor portrait of Ruddy Duck (Oxyura jamaicensis)

Ruddy Duck

Oxyura jamaicensis
Common Bubble-pop courtship rhythm

Learn to identify the Ruddy Duck by ear. Master the "bup-bup-bup-bup-bup-bup" phrase and tell it apart from similar species.

“ch-ch-chicka-chicka-reee”

What the Ruddy Duck sounds like

Quick chest taps gather speed, then spill into the male’s funny little belch at the end of the display.

How to tell it apart

Listen for: “bup-bup-bup-bup-bup-bup”

Where you'll hear it

Breeds across the prairie pothole region of North America and locally in the western U.S., Canada, and Mexico; winters throughout the southern U.S., Mexico, Caribbean, and coastal areas as far south as Central America.

Prefers shallow freshwater ponds, marshes, prairie potholes, and slow-moving wetlands with abundant emergent vegetation; winters on larger lakes, reservoirs, protected coastal bays, and estuaries.

Breeding males adopt their colorful plumage from late spring through midsummer; large southward movements begin in late September, with winter flocks forming October–March; northbound migrants return March–May.

How to recognize it by sight

The Ruddy Duck is a compact, small stiff-tailed duck with a broad, scoop-shaped bill and a cocked tail that is often held upright. Males in breeding plumage show a rich chestnut body, sky-blue bill, and striking black-and-white head pattern. Outside the breeding season both sexes appear gray-brown, yet the distinctive tail posture and large head help separate them from other ducks. They are diving specialists, spending most of their time on the water and seldom walking on land.

Similar species

Bufflehead

Bufflehead is smaller and more compact, with no stiff tail held upright; males also show a large white head patch rather than a blue bill.

Blue-winged Teal (female)

Lacks stiff upright tail

Female Ruddy Duck vs Female Masked Duck

Masked Duck smaller and more secretive, with darker facial mask and barred flanks

Ruddy Duck song FAQ

What does a Ruddy Duck sound like?
Quick chest taps gather speed, then spill into the male’s funny little belch at the end of the display. Listen for the "bup-bup-bup-bup-bup-bup" phrase.
How do I tell a Ruddy Duck from a Bufflehead?
Bufflehead: Bufflehead is smaller and more compact, with no stiff tail held upright; males also show a large white head patch rather than a blue bill. Bufflehead male shows iridescent head and large white patch, not sky-blue bill.
When is the best time to hear a Ruddy Duck?
Breeding males adopt their colorful plumage from late spring through midsummer; large southward movements begin in late September, with winter flocks forming October–March; northbound migrants return March–May.