Black-capped Vireo

Vireo atricapillus
Black-capped Vireo thumbnail
Length: 5 in. (11 cm )
This endangered species is threatened by habitat destruction, and in some parts of its shrinking range more than 90% of the nests are parasitized by cowbirds. It is restricted to open oak-juniper habitat where it feeds almost exclusively on insects and spiders gleaned from leaves and branches in dense low vegetation. The deep, cup-like nest is hung by its rim in the fork of a small branch in a short tree, and it is constructed of grass, leaves and spider silk.

The four-digit banding code is BCVI.


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

  • Article: Black-capped Vireo
  • 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). Black-capped Vireo. ASU - Ask A Biologist. Retrieved March 24, 2018 from

American Psychological Association. For more info, see

Chicago Manual of Style

Dr. Biology. "Black-capped Vireo". ASU - Ask A Biologist. 13 July, 2017.

MLA 2017 Style

Dr. Biology. "Black-capped Vireo". ASU - Ask A Biologist. 13 Jul 2017. ASU - Ask A Biologist, Web. 24 Mar 2018.

Modern Language Association, 7th Ed. For more info, see
If birds evolved from dinosaurs, would that make them reptiles too?

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