Well-named bird found only in a small area of the eastern Andes in central Peru. Like other thistletails, it is gray and brown with a long, wispy tail and an orange chin. Not known to overlap with any other thistletail; the only other in Peru with an eye-ring is Mouse-colored Thistletail, which only occurs far to the north. Inhabits scrub and stunted forest near treeline. Gives rapid, high-pitched trills and sharp squeaks.