Clarión wren

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Clarión wren
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Troglodytidae
Genus: Troglodytes
Species: T. tanneri
Binomial name
Troglodytes tanneri
Townsend, 1890

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

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]


  1. ^ a b c BirdLife International (2012). "Troglodytes tanneri". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ a b c d e Brattstrom, Bayard H.; Howell, Thomas R. "The Birds of the Revilla Gigedo Islands, Mexico" (PDF). Condor. 58 (2): 107–120. JSTOR 1364977. doi:10.2307/1364977.