Canyon Wren - BirdForum Opus

Photo by digishooter
Sawmill Rd, Kern Co., California, USA, April 2007

Catherpes mexicanus

Identification

Photo © by benoitjh
Okanagan, British Columbia, Canada, 17 April 2021

L. 14.5cm (5.75 in)
Ws. 19cm (7.5")

• Deep rufous back, belly and tail
• Barring on tail
• White throat
• Very long bill
• Often appears streamlined and elongated

Very long bill for probing in rock crevices.

It is most conclusively identified by habitat and song.

Distribution

A broad band from the central western U.S. deeply into central Mexico. Pacific Coast of California throughout Baja California where there is suitable habitat.

Taxonomy

The only species in genus Catherpes.

Subspecies^[1]

Between 3 and 9^[2] subspecies are recognised, depending on the authority:

• C. m. conspersus:

• Southern British Columbia through western US to north-western Mexico (Sonora)

• C. m. albifrons:

• South-western Texas and northern Mexico (south to Zacatecas and San Luis Potosí)

• C. m. mexicanus:

• Mexico (southern Chihuahua to Isthmus of Tehuantepec)

Habitat

Canyons, especially with year-round water. Also inhabits cliffs and rock formations.

Behaviour

Bobs when perched, cocks tail over back.

Breeding

Nests in cracks in rock walls, flying rapidly and expertly into narrow crevices. Utilizes favorite temporary perches, often repeating the same sequence of flights and landings when returning to the nest.

Diet

Forages for food (insects and spiders) among rocks.

Vocalisation

Song: Distinct: a descending series of notes that gradually slows in cadence as each note (Peuw) increases in length. The song can be repeated several times in a minute, and often echoes from the canyon walls, rendering it an integral part of the habitat in which it lives. Reminiscent of a wind-up toy that gradually runs down.

References

1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2019. The eBird/Clements Checklist of Birds of the World: v2019. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
2. Lepage D. (2021) [Avibase - https://avibase.ca/EAD14427]. Retrieved 23 April 2021
3. All About Birds

• List of references

Recommended Citation

• BirdForum Opus contributors. (2024) Canyon Wren. In: BirdForum, the forum for wild birds and birding. Retrieved 23 December 2024 from https://www.birdforum.net/opus/Canyon_Wren

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