Bolivian Warbling-Finch

The Bolivian warbling finch is 15 to 16 cm (5.9 to 6.3 in) long. Adults have a grayish crown and a long white supercilium on an otherwise dark gray face. Their upperparts are grayish brown and their tail dusky with wide white tips on the outermost pair of feathers. Their wings are mostly grayish brown with rufous edges on the secondaries. Their throat is white, their breast and flanks chestnut, their belly and vent white, and their crissum buffy white. They have a dark brown iris, a small, pointed, dark gray bill with a black tip and culmen, and blackish legs. Juveniles are paler and duller than adults with a buff tinge on the supercillium and faint streaks on the underparts.

The Bolivian warbling finch is found in the Andes from eastern La Paz Department in Bolivia south through Cochabamba, western Santa Cruz, western Chuquisaca, and western Tarija departments slightly into northwestern Argentina's Salta Province. It primarily inhabits dry to somewhat humid scrublands, open woodlands, shrubby hillsides, and thickets along watercourses. In elevation it ranges from 1,600 to 3,100 m (5,200 to 10,200 ft).

The Bolivian warbling finch's diet has not been studied but appears to be arthropods and seeds. It forages on the ground and in dense vegetation. It usually is found singly and in pairs which often flock with other species.