Colima warbler

The Colima warbler is about 4.5 to 5 inches in length. They are mainly dark gray and brownish in coloration, with a pale under-side. Their rump and the feathers below their tail are yellow. They have a white ring around their eye, and a tinge of pale color on their breasts. Males have a spot of orange on the top of their heads.

The Colima warbler is classified as Near Threatened (NT), is close to qualifying for or is likely to qualify for a threatened category in the near future.

The Colima Warbler, Vermivora crissalis, is a New World warbler. It is mainly found in the Sierra Madre Occidental of central Mexico, though its range just barely extends into adjacent southwestern Texas in the Chisos Mountains of Big Bend National Park. The Colima warbler is about 4.5 to 5 inches (11 to 13 cm) in length. They are mainly dark gray and brownish in coloration, with a pale under-side. Their rump and the feathers below their tail are yellow. More

In appearance the Colima Warbler is very similar to the Virginia's Warbler, but is larger in size, more robust, and heavier billed. The Virginia's Warbler has much more yellow or pale color on their breasts, which is more gray in the Colima Warbler. The yellow above and below the tail is also more orange-yellow in the Colima's Warbler, and more greenish-yellow in Virginia's Warblers. Life history - Nesting is done on the ground. More

The Colima Warbler was thought to be restricted to Mexico until a specimen was collected in Texas in 1928. It was later confirmed that the warbler breeds in Texas. It is unclear if this represents a range expansion or was simply overlooked until then. The Texas population in the Chisos Mountains appears to be stable. Ecology Prefers chaparral regions between 1500m and 3600m in elevation where oak and pine are dominant and there is a grassy ground cover. More

* The Colima Warbler was thought to be restricted to Mexico until a specimen was collected in Texas in 1928. It was later confirmed that the warbler breeds in Texas. It is unclear if this represents a range expansion or was simply overlooked until then. * They have been observed adapting to weather patterns. More

Colima WarblerVermivora crissalis Order PASSERIFORMES – Family PARULIDAE Issue No. 383 Authors: Beason, Robert C., and Roland H. Wauer * Articles * Multimedia * References Courtesy Preview This Introductory article that you are viewing is a courtesy preview of the full life history account of this species. The remaining articles (Distribution, Habitat, Behavior, etc. More

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. More

The Colima Warbler is primarily a Mexican species, and its breeding range in the U.S. is limited to the Chisos Mountains in Big Bend National Park, Texas. A 10-mile round trip hike into the mountains in the late spring or summer is required to reliably see this species in the U.S. Colima Warblers sing and forage in trees, especially oaks, but they nest on the ground, usually under some kind of protective cover such as rocks or vegetation. More

, Colima Warbler is found only in the Chisos Mountains of Texas, at altitude of approximately 5800 to 7000 feet. More

Colima Warbler - Vermivora crissalis - - RANGE: Breeds in the Chisos Mountains in extreme western Texas and northern Mexico. Winters in Mexico. STATUS: Rare and local. HABITAT: Inhabits forested canyons and slopes between 6,000 and 7,000 feet, where it frequents thickets of young maples and oaks along dry stream beds, clumps of small oaks along mountain slopes, and mixed woods of maple, oak, Arizona cypress, and yellow pine. More

Walk- ing up the stream side to the dam we found Colima Warblers in full song and realized that these were the unknown phrases heard in three places on the ride up to Boot Spring. To our ears the notes more nearly resembled those of the Pine Warbler (Dendroica pinus) than the Chipping Sparrow's (Spizella passerina) as it has been described in literature. The Pine Warbler-like trill was followed by two lower notes, the final one usually accented. More

don't see too often, such as the Colima Warbler, Mexican Jays and Scott's Orioles, but then there's also that huge expanse of beautiful country, the mountains, the plant life, the animals and the history of the people who lived there before us. On this trip we did spend more time focusing on the history and homesteads of several families including the Wilson's and Nail's. Being there it was easier to imagine their lives, their hardships and successes of living in such a challenging environment. More

The Colima Warbler was first collected in the Mexican state of Colima on its wintering grounds in 1889. Study by van Tyne, Wauer and Marshall and coworkers have produced most of our knowledge of this warbler, probably the least know of any warbler in the United States. The Colima is larger than Lucy's (V. luciae) and Virginia's (V. virginiae) warblers, has a generally gray-brown appearance with olive-yellow rump and upper-tail coverts and ochre-yellow under-tail coverts (Howell and Webb 1995, Beason and Wauer 1998). More