Colima Warbler

Vermivora crissalisOrder: PASSERIFORMESFamily: Wood Warblers (Parulidae)

Breeding Location:

Mountain canyons

Breeding Type:

Monogamous, Solitary nester

Breeding Population:

Abundant on breeding grounds, Rare in North America

Egg Color:

Creamy white with some brown at larger end

Number of Eggs:

Incubation Days:

Egg Incubator:

Female

Nest Material:

Coarse grass, bark, lined with fine materials.

Migration:

Migratory

Overview

Colima Warbler: Large warbler, gray head, throat, brown to gray-brown upperparts. Rufous crown patch, white eye ring. Bright yellow-olive rump. Buff-brown breast, flanks. Light gray belly. Long gray tail. Believed to be restricted to Mexico until 1928, when a specimen was found in Texas.

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."

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Colima Warbler

● Song: "plisk"

● Foraging & 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.

● Breeding & 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.

● Similar species:

Flight Pattern

Short flights usually within vegetation and fairly high in canopy.

● Range & 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.

^BreedingMonogamous, Solitary nester

^PopulationAbundant on breeding grounds, Rare in North America

^MigrationMigratory

^Weight0.4 Ounces

Field Guide to Birds of North America

Colima Warbler

Breeding Location:

Breeding Type:

Breeding Population:

Egg Color:

Number of Eggs:

Incubation Days:

Egg Incubator:

Nest Material:

Migration:

Overview

Range and Habitat

Breeding and Nesting

Foraging and Feeding

Vocalization

Colima Warbler

Flight Pattern