Brewer's Blackbird

Euphagus cyanocephalus

Summary 5

Brewer’s Blackbirds (Euphagus cyanocephalus): males are glossy black with iridescent blue tinge the heads and iridescent green tinge on backs and a bright yellow eye. Females are brown with darker wings and tail and a dark eye.

Similar SpeciesEuropean Starlings Are iridescent black with white spots, yellow bills and dark colored eyes.

Brown-headed Cowbird lack the iridescence and have a black body with a brown head and dark colored eyes.

Where on Campus 6

Common in lawn areas around the central part of campus near the library and Student Activities Center.

Habitat 6

Brewer's Blackbirds are typically found in coastal scrub, grasslands, and meadows, but are equally comfortable in parking lots, golf courses and lawns.

Life History 6

Nesting Females build cup nests in shrubs. They usually nest in colonies of up to 100 pairs. Females will produce 1-2 broods/year. Pairs appear to be monogamous during the mating season and will typically continue to nest together over their lifetimes.

FeedingBrewer's Blackbirds feed primarily on the ground and eat seeds, grains and insects. They are also known to eat small amphibians and the chicks of other birds.

Distribution 6

Brewer's Blackbirds are found throughout western N. America and have been expanding eastward in the US

Migration 6

Most populations found west of the Rockies are residents and do not migrate. Northern populations (Canada, Northern US) will migrate to southern parts of the US and into Mexico.

Sources and Credits

  1. (c) Jamie Chavez, some rights reserved (CC BY-NC), http://www.flickr.com/photos/20709090@N00/3239901173
  2. (c) Lynette Schimming, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/25798551
  3. (c) Lynette Schimming, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/25798552
  4. (c) Phil Myers, Museum of Zoology, University of Michigan, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/18647620
  5. Adapted by gillian360 from a work by (c) Unknown, some rights reserved (CC BY), http://eol.org/data_objects/17769181
  6. (c) gillian360, some rights reserved (CC BY-SA)

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