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A small (14cm, 5.5in) flycatcher of typical appearance; back brownish-olive, yellowish-olive underparts, two strong wing bars, crest, and white-eye-ring, slightly extended behind the eye. | A small (14cm, 5.5in) flycatcher of typical appearance; back brownish-olive, yellowish-olive underparts, two strong wing bars, crest, and white-eye-ring, slightly extended behind the eye. | ||
====Similar Species==== | ====Similar Species==== | ||
| − | * [[Pacific-slope Flycatcher]]: physically indistinguishable except by voice in the males. | + | * [[Pacific-slope Flycatcher]]: physically indistinguishable except by voice in the males. <br /> |
* [[Yellow-bellied Flycatcher]]: has shorter tail than E. occidentalis, and brighter, more yellow wing bars. | * [[Yellow-bellied Flycatcher]]: has shorter tail than E. occidentalis, and brighter, more yellow wing bars. | ||
==Distribution== | ==Distribution== | ||
In summer, intermountain west of the [[USA]], most commonly in [[Idaho]], [[Wyoming]], [[Utah]], [[Colorado]], [[Arizona]], and [[New Mexico]]. Migrates to the coast along the Sea of Cortez in [[Mexico]] for the winter. | In summer, intermountain west of the [[USA]], most commonly in [[Idaho]], [[Wyoming]], [[Utah]], [[Colorado]], [[Arizona]], and [[New Mexico]]. Migrates to the coast along the Sea of Cortez in [[Mexico]] for the winter. | ||
==Taxonomy== | ==Taxonomy== | ||
| − | + | Cordilleran Flycatcher and [[Pacific-slope Flycatcher]] were in the past considered one species, [[Western Flycatcher]]. | |
====Subspecies==== | ====Subspecies==== | ||
There are 2 subspecies<sup>[[#References|[1]]]</sup>: | There are 2 subspecies<sup>[[#References|[1]]]</sup>: | ||
Revision as of 01:09, 2 April 2011
- Empidonax occidentalis
Identification
A small (14cm, 5.5in) flycatcher of typical appearance; back brownish-olive, yellowish-olive underparts, two strong wing bars, crest, and white-eye-ring, slightly extended behind the eye.
Similar Species
- Pacific-slope Flycatcher: physically indistinguishable except by voice in the males.
- Yellow-bellied Flycatcher: has shorter tail than E. occidentalis, and brighter, more yellow wing bars.
Distribution
In summer, intermountain west of the USA, most commonly in Idaho, Wyoming, Utah, Colorado, Arizona, and New Mexico. Migrates to the coast along the Sea of Cortez in Mexico for the winter.
Taxonomy
Cordilleran Flycatcher and Pacific-slope Flycatcher were in the past considered one species, Western Flycatcher.
Subspecies
There are 2 subspecies[1]:
- E. o. hellmayri:
- E. o. occidentalis:
- Highlands of Mexico
Habitat
Shaded forests, often along streams.
Behaviour
Perches on a branch, sallying forth repeatedly to catch flying insects.
References
- Clements, JF. 2010. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2010. Ithaca: Cornell Univ. Press. ISBN 978-0801445019. Spreadsheet available at http://www.birds.cornell.edu/clementschecklist/Clements%206.5.xls/view
Recommended Citation
- BirdForum Opus contributors. (2024) Cordilleran Flycatcher. In: BirdForum, the forum for wild birds and birding. Retrieved 17 May 2024 from https://www.birdforum.net/opus/Cordilleran_Flycatcher
