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Crissal Thrasher - BirdForum Opus

Photo by mtbirder
Southern Arizona, Winter 2010
Toxostoma crissale

Identification

11.5 ins (29 cm)

  • Dark grey brown above
  • Grey below
  • White throat
  • Dark moustachial stripe
  • Red undertail
  • Rust coloured belly and undertail coverts
  • Long dark tail
  • Yellow iris
  • Long, down-curved bill
  • Dark legs
  • Sexes similar

Distribution

Southern California, southern Nevada, most of Arizona, most of New Mexico, western Texas and northern Mexico.

Taxonomy

Subspecies

This is a polytypic species consisting of four subspecies[1]:

  • T. c. coloradense:
  • T. c. crissale:
  • Arid south-western US to western Texas and northern Mexico (Sonora to north-western Coahuila)
  • T. c. trinitatis:
  • T. c. dumosum:
  • Northern Mexico (Zacatecas, southern Coahuila, San Luis Potos¡ and Hidalgo)

An additional subspecies dorsale is generally considered invalid[2].

Habitat

Riparian thickets and desert areas.

Behaviour

Diet

The diet includes insects, spiders, seeds, and berries.

Breeding

It builds its nest from twigs, lined with plant material, close to the branch. The 1-4 unspotted bluish-green, eggs are incubated by both parents for 14 days.

References

  1. Clements, JF. 2011. The Clements Checklist of Birds of the World. 6th ed., with updates to August 2011. Ithaca: Cornell Univ. Press. ISBN 978-0801445019. Spreadsheet available at http://www.birds.cornell.edu/clementschecklist/downloadable-clements-checklist
  2. Avibase
  3. Cornell Lab of Ornithology
  4. USGS
  5. Whatbird.com

Recommended Citation

External Links

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