Clarión wren

The Clarión wren (Troglodytes tanneri) is a species of bird in the family Troglodytidae. It is endemic to Clarión Island off Pacific Mexico.

Clarión wren
Conservation status
Vulnerable  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Troglodytidae
Genus:	Troglodytes
Species:	T. tanneri
Binomial name
Troglodytes tanneri Townsend, CH, 1890

It looks much like a house wren but is larger with a prominently longer bill, somewhat approaching the Carolina wren in form.^[2]

Its natural habitats are the less arid patches of shrubland,^[1] notably thickets of Ipomoea halierca morning glory.^[2] It also appears to occur in the garrison buildings and garden at Sulfur Bay,^[1] but usually avoids the rocky shores and other exposed areas. In dense undergrowth, territories are some 10 meters (30–40 ft) in diameter.^[2]

In late March 1953, males were found to be singing and threatening intruding competitors. Egg laying takes place between mid-March and mid-April.^[2]

The eggs are similar to those of the house wren, but larger and more elongated. They measure approximately 20×14 mm and also are colored basically like those of house wrens but with fewer and crisper markings noticeably denser at the blunt end.^[2]

References

1. BirdLife International (2020). "Troglodytes tanneri". IUCN Red List of Threatened Species. 2020: e.T22711493A179753458. doi:10.2305/IUCN.UK.2020-3.RLTS.T22711493A179753458.en. Retrieved 12 November 2021.
2. Brattstrom, Bayard H.; Howell, Thomas R. (1956). "The Birds of the Revilla Gigedo Islands, Mexico" (PDF). Condor. 58 (2): 107–120. doi:10.2307/1364977. JSTOR 1364977.