About Synallaxis ruficapilla Vieillot, 1819
Description: The rufous-capped spinetail (Synallaxis ruficapilla Vieillot, 1819) measures 13 to 17 cm (5.1 to 6.7 in) in length and weighs 12 to 16 g (0.42 to 0.56 oz). Both sexes share identical plumage. Adults have a wide buff supercilium, with dark brownish gray lores and ear coverts. Their crown and nape are bright orange-rufous, while their back, rump, and uppertail coverts are rufescent brown. Their wings are mostly chestnut-brown. Their tail is chestnut-colored, with a graduated shape and feathers with pointed tips. Adults have a tiny tawny spot on the chin; the rest of the chin and throat are whitish with faint gray streaks. Their upper breast is grayish, and the remainder of their underparts are a paler buffy brownish shade. Their iris is reddish brown, the maxilla is black, the mandible is gray with a dark tip, and their legs and feet are greenish gray. Juveniles have a duller crown than adults, with little to no chin spot, and an ochraceous or brownish wash across their underparts. Distribution and habitat: This species is found in Brazil, ranging from southern Goiás east to Espírito Santo, and south into northern Rio Grande do Sul. It also occurs in far eastern Paraguay, and in the Misiones and Corrientes provinces of northern Argentina. It lives in the undergrowth and edges of many types of forest landscapes, including both primary and secondary montane and lowland evergreen forest. It is strongly associated with stands of Chusquea bamboo. Its elevational range extends from near sea level up to 1,400 m (4,600 ft).
