Western Bluebird

Sialia mexicana
Western Bluebird thumbnail
Length: 7 in. (18 cm )
Pairs or small flocks of this bluebird species are common throughout open habitats with scattered trees, forest edge, agricultural fields and riparian areas. The cavity nest is in a tree or nest box, and the cavity floor is lined with grass, pine needles, twigs, hair and feathers. Insects make up a large part of the diet, especially when feeding young, and the insects are often captured in the air low over the ground. Berries are a major food in the winter.\r\n

The four-digit banding code is WEBL.

Male | Oliver Niehuis

Female | Oliver Niehuis


Fir forest


Bird Sound Type: Twittering
Sex of Bird: Male
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Bibliographic details:

  • Article: Western Bluebird
  • Author(s): Dr. Biology
  • Publisher: Arizona State University School of Life Sciences Ask A Biologist
  • Site name: ASU - Ask A Biologist
  • Date published: July 13, 2017
  • Date accessed: March 24, 2018
  • Link:

APA Style

Dr. Biology. (2017, July 13). Western Bluebird. ASU - Ask A Biologist. Retrieved March 24, 2018 from

American Psychological Association. For more info, see

Chicago Manual of Style

Dr. Biology. "Western Bluebird". ASU - Ask A Biologist. 13 July, 2017.

MLA 2017 Style

Dr. Biology. "Western Bluebird". ASU - Ask A Biologist. 13 Jul 2017. ASU - Ask A Biologist, Web. 24 Mar 2018.

Modern Language Association, 7th Ed. For more info, see
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