About Terenura maculata (Wied-Neuwied, 1831)
The streak-capped antwren (Terenura maculata (Wied-Neuwied, 1831)) measures 9 to 10 cm (3.5 to 3.9 in) in length; one recorded individual weighed 6.5 g (0.23 oz). Adult males have black and white streaking across their crown, nape, and upper back. The remainder of their upperparts are tawny to chestnut, with yellow mixed in on the rump, and they have a hidden white patch between the shoulders. Their wings are black with pale yellow edges on the flight feathers (the edges are tawny on the tertials) and white tips on the coverts. Their tail is olive-gray. Their throat and upper breast are white with black streaks, their lower breast is yellow with black streaks, and their belly and undertail coverts are unstreaked yellow. Adult females closely resemble males, but are paler overall. The white streaks on their head and nape have a pale buff tinge, and the streaking on their underparts is less distinct than that of males. The streak-capped antwren is a bird native to the southern Atlantic Forest. It is found along the Brazilian coast from Bahia to Santa Catarina, and inland in the Brazilian states of Minas Gerais, São Paulo, and Paraná. Its range extends into eastern Paraguay, between the departments of Canindeyú and Caazapá, and also into extreme northeastern Argentina's Misiones Province. It inhabits evergreen forest and secondary woodland, and occurs in the mid-storey and canopy of the forest. Its elevational range extends from sea level up to 1,250 m (4,100 ft).