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Bird name:

Colima Warbler

Vermivora crissalisOrder: PASSERIFORMES Family: Wood Warblers (Parulidae)

Codes: Common Name: COLW Scientific Name: VERCRI ITIS Taxonomic No.: 178865

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

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."

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Bird Call Credits: The Macaulay Library of Natural Sounds at the Cornell Lab of Ornithology. Martyn Stewart, http://www.naturesound.org, Redmond, Washington USA. The reuse or copying of bird calls in this database is strictly forbidden.

Colima Warbler

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.

● 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

Upperparts

Back, rump, hindneck, wings, and crown.

Belly

The ventral part of the bird, or the area between the flanks on each side and the crissum and breast. Flight muscles are located between the belly and the breast.

Breast

The upper front part of a bird.

Crown

The crown is the top part of the birds head.

Eye ring

The circle around the eye formed of feathers that are a different color from the rest of the face.

Rump

The area between the uppertail coverts and the back of the bird.

4 and 6 letter alpha codes

The four letter common name alpha code is is derived from the first two letters of the common first name and the first two letters of common last name. The six letter species name alpha code is derived from the first three letters of the scientific name (genus) and the first three letters of the scientific name (species). See (1) below for the rules used to create the codes..

Four-letter (for English common names) and six-letter (for scientific names) species alpha codes were developed by Pyle and DeSante (2003, North American Bird-Bander 28:64-79) to reflect A.O.U. taxonomy and nomenclature (A.O.U. 1998) as modified by Supplements 42 (Auk 117:847-858, 2000) and 43 (Auk 119:897-906, 2002). The list has been updated by Pyle and DeSante to reflect changes reported by the A.O.U from 2003 through 2006.

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:

Recommended Products:

General

Range and Habitat

Breeding and Nesting

Foraging and Feeding

Vocalization

Colima Warbler

Flight Pattern