Rotflanken-Finkentangare Poospizopsis hypochondria

Small tanager of semi-arid montane forest at upper elevations in the eastern Andes from NW Argentina to Lake Titicaca, and in the Sierra de Comechingones in C Argentina. Prefers scrubby vegetation, including open Polylepis forest, often in small flocks with other species. Underparts gray and whitish with rufous restricted to sides and flanks on males, and lower belly on females. Similar Bolivia Warbling-Finch shows rufous across chest.