Short-tailed canastero endemic to the Sorata vicinity in northern Bolivia. Prefers montane scrub on hillsides, but occasionally near human development and open Polylepis forest. Very similar to Creamy-breasted Canastero, but note pale face and whitish breast. Song a series of notes starting with a dry sputter, then erupting into a high and emphatic descending series of squeaks that accelerates at the end.