• Female. Note: thin bill, white cheek patch contrasting with dark cap.
  • Male (front) and female.

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Black Scoter

Melanitta nigra
The swans, geese and ducks are mid-sized to large birds most commonly found on or near water. Most have plump bodies, long necks and short wings. Most feed while on the water, diving or merely tilting their bodies so that their heads and necks are submerged to search for fish, plants and invertebrates. Washington representatives of the order all belong to one family:
The waterfowl family is represented in Washington by two distinct groups—the geese and swans, and the ducks. Whistling-ducks are also considered a distinct subfamily, and, although they have not been sighted in Washington in many years, Fulvous Whistling-Ducks have been recorded historically in Washington and remain on the official state checklist. All members of the waterfowl family have large clutches of precocial young. They hatch covered in down and can swim and eat on their own almost immediately after hatching.
Fairly common winter coast.
  • Puget Sound Seabird Survey

General Description

Black Scoters are large, mostly black or dark gray sea ducks. Formerly called the Common Scoter, the Black Scoter is the least common of the three scoters. Adult males are solid black with a bulbous yellow knob on an otherwise black bill. Females and juveniles are dark gray, lighter on the cheek with a dark cap. Their bills are dark and lack the knob found in adult males.


The breeding range of the Black Scoter is at the edge of the northern forest or in the treeless tundra, where they breed on small, shallow lakes, ponds, sloughs, and river banks with tall grasses to conceal nests. In winter, they can be found on coastal bays and along coastlines, usually in shallow water within a mile of shore.


Scoters spend the non-breeding part of the year in large flocks on the ocean. Black Scoters forage by diving and swimming under water, propelled by their feet. They usually feed in areas of open water, avoiding dense submergent or emergent vegetation. They swallow their prey under water, unless it is large or bulky. They are strong fliers, but must get a running start on the water to get airborne.


At sea, mollusks are the most common prey item of the Black Scoter, although crustaceans and other aquatic invertebrates are also part of the diet. On fresh water, aquatic insects, fish eggs, mollusks, small fish, and some plant matter are eaten.


Most females probably start breeding at the age of two. Pairs form in late fall and winter. The female builds the nest on the ground, usually near the water on a hummock or ridge, well concealed by vegetation. The nest is a shallow depression lined with plant material and down. The female lays 8 to 9 eggs and incubates them for 27 to 31 days. The pair bond dissolves, and the male departs for the molting grounds soon after the female begins incubation. It is not known whether pairs re-form in the fall, or if new pairs are formed. Shortly after hatching, the young leave the nest and head to the water. The female tends the young and continues to brood them at night, but they can swim and feed themselves. Most females abandon their broods after one to three weeks. Multiple broods gather together on lakes until they can fly, at 6 to 7 weeks.

Migration Status

Black Scoters migrate north from March through May and south from late September through November. The fall migration is preceded by a molt migration where birds molt in large groups at northern coastal sites before heading south in fresh plumage.

Conservation Status

Although the Black Scoter is by some accounts the least numerous of the scoters in North America, numbers appear to be stable. Other sources document a long-term trend of decline. Many surveys of scoters do not differentiate between the three species, and it is difficult to determine the population trends of each species independently. The two most significant potential threats to Black Scoters in Washington are oil spills and heavy-metal contamination (which accumulates in prey items such as mussels).

When and Where to Find in Washington

Some of the major wintering areas of Black Scoters in the West include the coastal waters off Washington, where they are widespread but not common from mid-November to mid-May. Limited numbers can also be found in the Strait of Juan de Fuca and Puget Sound. They are regularly seen at Budd Inlet in the Olympia Harbor (Thurston County) and in Penn Cove on Whidbey Island (Island County).

Abundance Code DefinitionsAbundance

C=Common; F=Fairly Common; U=Uncommon; R=Rare; I=Irregular
Pacific Northwest CoastUUUUU RUUUU
North Cascades
West Cascades
East Cascades
Canadian Rockies
Blue Mountains
Columbia Plateau

Washington Range Map

North American Range Map

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Federal Endangered Species ListAudubon/American Bird Conservancy Watch ListState Endangered Species ListAudubon Washington Vulnerable Birds List

View full list of Washington State's Species of Special Concern