Its natural habitats are the less arid patches of shrubland, notably thickets of Ipomoea halierca morning glory. It also appears to occur in the garrison buildings and garden at Sulfur Bay, but usually avoids the rocky shores and other exposed areas. In dense undergrowth, territories are some 10 meters (30–40 ft) in diameter.
In late March 1953, males were found to be singing and threatening intruding competitors. Egg laying takes place between mid-March and mid-April.
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.
- BirdLife International (2012). "Troglodytes tanneri". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
- Brattstrom, Bayard H. & Howell, Thomas R. "The Birds of the Revilla Gigedo Islands, Mexico". Condor 58 (2): 107–120. doi:10.2307/1364977. JSTOR 1364977.
|This Troglodytidae-related article is a stub. You can help Wikipedia by expanding it.|