Fairly common brownish bird found in shrubby grasslands and páramo in the high Andes from northern Colombia to central Peru. Notable features include bold white streaking above and below and rufous wings that contrast with its brown body. Typically shows a thin white eyebrow. Some variation across range: birds in East Andes of Colombia have a tawnier face while birds in Peru are whiter below. Compare with Streak-backed Canastero, which has much plainer underparts. Can be fairly sneaky and difficult to see on the ground or in dense shrubs, but occasionally perches in the open, especially when singing. Listen for accelerating series of harsh “scree” notes ending in a hard, fast trill.