Habitat
During the breeding season in pine-oak, oak and pinyon-juniper woodland, and in the non-breeding season in brushy understorey of humid to semi-humid montane forest. From 1,500 - 3,500 m.
Breeds in extreme southern USA (Chisos Mts, in extreme south-western Texas) and mountains of north-eastern Mexico (Coahuila, Nuevo León, north-eastern Zacatecas, northern San Luis Potosí
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is 25,000 (2010) and decreasing.
Status LC
Grazing by goats, sheep and other exotic herbivores, increases in the populations of feral cats and dogs, and nest parasitism by Brown-headed Cowbird (Molothrus ater) are the main threats.
For more information see BirdLife International Species Factsheet.
Colima Warbler (Leiothlypis crissalis) [XC27385]
by Andrew Spencer from Pinnacles trail, Chisos Mts, Brewster Co., TX, United States (call)
Colima Warbler (Leiothlypis crissalis) [XC34310]
by Andrew Spencer from Laguna Meadows Trail, Big Bend National Park, Brewster Co., Texas, United States (song)
Present species sometimes included in the superspecies formed by Nashville Warbler (Leiothlypis ruficapilla) and Virginia's Warbler (Leiothlypis virginiae), and all have been considered conspecific, although this treatment not generally accepted. Some recent authors have suggested a close relationship with Orange-crowned Warbler (Leiothlypis celata), this based on similarities in size, shape, song and habitat.
BirdLife International Species Factsheet