This species occurs throughout the west from California east of the Sierra-Cascade Ranges to southern British Columbia; east to New Mexico, Texas, and north to western South Dakota. In addition, this species has been sporadically found west of the Sierra-Cascade crest in Oregon and California.
This western North American species has declined in relative abundance by 82.57% over the past ten years, and persistence declines have also been high (>70%). More research is needed to evaluate the status of this species throughout its range, especially eastern Oregon and Washington, and western Nevada. Overall, this species is uncommon, and appears to be declining in parts of its range. Read More