• Male
  • Female. Note: dark eye, thin dark bill, and drab gray-brown overall.

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Brewer's Blackbird

Euphagus cyanocephalus
Members of this diverse group make up more than half of the bird species worldwide. Most are small. However their brains are relatively large and their learning abilities are greater than those of most other birds. Passerine birds are divided into two suborders, the suboscines and the oscines. Oscines are capable of more complex song, and are considered the true songbirds. In Washington, the tyrant flycatchers are the only suboscines; the remaining 27 families are oscines.
This New World family of medium and large songbirds is very familiar, as most species are common inhabitants in human-altered settings. Many are partly to entirely black, often with iridescence or bright markings of some sort. Most blackbird species form flocks at certain times of the year, and many form multispecies flocks. Blackbirds live in open habitats and eat seeds, grain, and insects. They often forage in agricultural areas, where they can be considered pests. These birds generally forage on the ground where they are well adapted for a behavior called gaping. They insert their long, slender bills into the ground, and then open their bills to get at underground insects. Blackbirds also use this technique to get into fruits and some insects, and to reach insects that are cocooned inside wrapped leaves. Most build open-cup nests in trees, shrubs, or on the ground. Many members of this family are polygynous. Females generally build the nests and incubate the eggs, and males help feed the young.
Common resident.
  • Sound To Sage

General Description

Adult male Brewer's Blackbirds are black with iridescent, purple-green plumage during the breeding season. Non-breeding and first-year males are brownish-black, with less iridescence than mature males in breeding season. Males in all plumages have yellow eyes. Females are dull gray-brown and have brown eyes. They are fairly slender birds, with long wings and tails.


Brewer's Blackbirds are most often associated with agricultural fields that have brushy edges. They can be found in other open areas as well, including parks, campgrounds, parking lots, wetlands, and suburban and urban settings. In Washington, they are also seen in shrub-steppe habitats, especially around grazing areas.


Brewer's Blackbirds form flocks outside of the breeding season, and may winter in mixed flocks with other blackbirds. They typically forage on the ground and often follow farm machinery, taking advantage of food turned up by plows.


Insects, seeds, berries, and waste grain make up the Brewer's Blackbird's diet.


Brewer's Blackbirds are monogamous and sometimes nest in small, loose colonies. They usually nest in trees, but may nest on the ground, in shrubs, or in tall grass. The female builds a bulky, open cup-nest of twigs, grass, weeds, and needles, lined with grass, rootlets, and hair. Mud or manure often holds the base together. The female incubates 4 to 6 eggs for 12 to 14 days, and both male and female feed the young. The young leave the nest 13 to 14 days after hatching. Each pair raises one or two broods a year.

Migration Status

Some Brewer's Blackbirds are year-round residents, and some (generally those that breed at higher altitudes or in more northern areas) migrate into milder areas. The birds that migrate move to the more moderate lowlands of the state including western interior valleys, Puget Sound, and the Columbia lowlands, or they travel farther south to areas across the southern United States and Mexico.

Conservation Status

Brewer's Blackbirds have benefited from the conversion of eastern Washington shrub-steppe habitat into farmland. Other human development has also been beneficial for this widespread and abundant species, as it does well in human-altered habitats. Christmas Bird Count data suggest that the wintering population of Brewer's Blackbirds in Washington may be in decline. However, this may be a reflection of Christmas Bird Counts that have been added within the past thirty years in areas where Brewer's Blackbirds are not common. The Breeding Bird Survey shows a small, not statistically significant increase in population between 1980 and 2002.

When and Where to Find in Washington

Brewer's Blackbirds are permanent residents throughout much of Washington. Large groups gather in the fall at feedlots. They can be abundant in the Puget Trough and Columbia Basin (to the Tri-Cities area) in winter. As breeders, they are more common in eastern Washington (where they are common throughout) than in western Washington. In western Washington, they commonly breed throughout lowlands in the Puget Trough, from the San Juan Islands, west to Sequim (Clallam County), south to Vancouver (Clark County), and west to Grays Harbor (Grays Harbor County).

Click here to visit this species' account and breeding-season distribution map in Sound to Sage, Seattle Audubon's on-line breeding bird atlas of Island, King, Kitsap, and Kittitas Counties.

Abundance Code DefinitionsAbundance

C=Common; F=Fairly Common; U=Uncommon; R=Rare; I=Irregular
Pacific Northwest CoastFFFFFFFFFFFF
Canadian Rockies FFFFCCF
Blue Mountains RUFFFFU
Columbia PlateauCCCCCCCCCCCC

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