Slender, long-tailed antbird restricted to the lower slopes of Colombia’s Santa Marta Mountains. It is heavily streaked on the head, breast, and back and has a tawny belly and rump. Male has darker and more contrasting streaks than female. No other similar antbird occurs in the Santa Martas. Inhabits stands of bamboo and usually first detected by voice. Typical song is two or more “chup” notes followed by several rasps. Regularly encountered along roadsides below El Dorado Nature Reserve.