Rufous-capped spinetail

The rufous-capped spinetail (Synallaxis ruficapilla) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Argentina, Brazil, and Paraguay.

The rufous-capped spinetail is 13 to 17 cm (5.1 to 6.7 in) long and weighs 12 to 16 g (0.42 to 0.56 oz). The sexes have the same plumage. Adults have a wide buff supercilium and dark 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. Their upper breast is grayish and the rest of their underparts paler buffy brownish. Their iris is reddish brown, their maxilla black, their mandible gray with a dark tip, and their legs and feet greenish gray. Juveniles have a duller crown than adults, with little or no chin spot and an ochraceous or brownish wash on the underparts.