Cynanthus latirostris

Cynanthus lawrencei and C. doubledayi were previously considered conspecific with C. latirostris, as in most classifications since Peters (1945), who provided no rationale for that taxonomic treatment. They were separated from C. latirostris based on plumage differences comparable to those between other species in the genus (Hernández-Baños et al. 2020) (AOS 2022).

Fairly large range in southwestern United states and Mexico; presumed large population size; probably relatively stable; no known major threats, locally affected by habitat loss/degradation.

Breeds from southeastern Arizona, southwestern New Mexico (Guadalupe Canyon), northwestern Sonora, northeastern Chihuahua, western Texas (Brewster County, casually), and east to Tamaulipas south through northern Mexico to Colima and northern Michoacán in the west and central Veracruz in the east.

Winters from central Sonora, Chihuahua, and Tamaulipas south through the breeding range and into northern Guerrero, rarely to Baja California, and in small numbers at feeders in the Tucson region of southeastern Arizona; a few individuals winter occasionally at feeders in southern California, southern Arizona, New Mexico, southern Texas, and southern Louisiana.

Casual, mainly in fall and winter, north to northern California, southern Nevada, southern Utah, northern Texas, and east along the Gulf coast from Mississippi to Georgia and Florida.

Accidental to Oregon, Idaho, southern Alberta, Colorado, Oklahoma, Kansas, Nebraska, Iowa, Illinois, Wisconsin, Michigan, Missouri, Arkansas, Tennessee, southern Ontario, southern Quebec, New Brunswick, Connecticut, Massachusetts, New York, North Carolina, and South Carolina.

The number of distinct occurrences or subpopulations has not been determined using standardized criteria, but this species is represented by a large number of observation/collection sites (e.g., see GBIF database, eBird) and locations (as defined by IUCN).

In the arid Southwest, loss/degradation of riparian nesting habitat is a major concern (Powers and Wethington 1999). Resident populations in Mexico might also be impacted by habitat loss, but this has not been studied (Powers and Wethington 1999).