The Inca finches form the genus Incaspiza, of finch-like birds in the tanager family Thraupidae. They were traditionally placed in the family Emberizidae, but molecular phylogenetic studies have shown that they are closely related to the Thraupidae. Both their scientific and common name refer to the Incan civilization. All have a pointed orange-yellow bill, a primarily gray head and chest, a paler buff or whitish belly, extensive white to the outer tail-feathers, and a small – but contrasting – black mask and chin. Except in the gray-winged Inca finch, all have a rufous back or wings.