Светлобровая иглохвостка Synallaxis scutata

Boldly marked species with a long spiky tail, reddish-brown upperparts, and grayish crown. Note the conspicuous white eyebrow and the white throat bordered below by a black patch. Inhabits dense undergrowth of deciduous and semi-deciduous forest. Occasionally accompanies mixed-species flocks. Sings a high, thin, shrill “tweet, to-wéét,” repeated for long periods.