Bahia spinetail

The Bahia spinetail is 15 to 17 cm (5.9 to 6.7 in) long and weighs 16 to 21 g (0.56 to 0.74 oz). The sexes have the same plumage. Adults have a wide cinnamon-buff supercilium and brownish gray lores and ear coverts. Their crown and nape are bright orange-rufous and their back, rump, and uppertail coverts are rufescent brown. Their wings are mostly chestnut-brown. Their tail is chestnut; it is graduated and the feathers have pointed tips. Their chin has a tiny tawny spot; the rest of their chin and throat are whitish with faint gray streaks. The rest of their underparts are dark grayish. Their iris is reddish brown to dark brown, their bill dark gray (sometimes with a paler base), and their legs and feet olivaceous to dark gray.