General

Colima Warbler: Large and long tailed. Gray head and throat, brown to gray-brown upperparts. Rufous crown patch, white eye ring. Bright yellow-olive rump. Buff brown breast and flanks. Light gray belly.

Range and Habitat

Colima Warbler: Short distance migrator. Breeds and winters in moist canyons of mixed hardwoods and softwoods at montane elevations of 6,000-7,700ft. United States range restricted to breeding in Chisos Mountains, Big Bend National Park, Texas. Also breeds in mountain habitat of north and eastern Mexico. Winters in mountains of central and southwestern Mexico.

Breeding and Nesting

Colima Warbler: Male and female build cup nest on ground. Nest hidden by vegetation, in leaf litter or under a clump of grass. Comprised of coarse grass, strips of bark, lined with fine materials. Female lays four creamy white eggs marked with brown at large end. Incubation by both sexes for 10 to 12 days.

Foraging and Feeding

Colima Warbler: Diet is presumably entirely insectivorous. Gleans insects from foliage, branches, and other vegetation fairly high in canopy. May hawk, or glean from ground as well. Diet habits not well documented.

Vocalization

Colima Warbler: Song is a musical trill with downslurred ending. Call is a loud, sharp "plisk."