Phrygilus

Phrygilus is a genus of mainly Andean seed-eating tanagers commonly known as sierra-finches. Phrygilos means finch in Ancient Greek. Sometimes classified in the bunting and American sparrow family Emberizidae, more recent studies have shown them to belong in the Thraupidae. The genus appears to be polyphyletic consisting of at least three distinct lineages which in future may need to be split into separate genera.

Species list
Group 1 - Phrygilus sensu stricto - The "Hooded" group. Related to yellow-finches Sicalis
 * Black-hooded Sierra-finch, Phrygilus atriceps
 * Peruvian Sierra-finch, Phrygilus punensis
 * Grey-hooded Sierra-finch, Phrygilus gayi
 * Patagonian Sierra-finch, Phrygilus patagonicus

Group 2 - Upperparts mostly grey, underparts white. Sexes similar. Related to a clade containing both the "hooded" group and Sicalis olivascens
 * Red-backed Sierra-finch, Phrygilus dorsalis
 * White-throated Sierra-finch, Phrygilus erythronotus

Group 3 - male plumage grey or dull brown, females streaky. Related to Haplospiza
 * Plumbeous Sierra-finch, Phrygilus unicolor
 * Ash-breasted Sierra-finch, Phrygilus plebejus

Group 4 - Yellow bill with grey/black underparts.
 * Band-tailed Sierra-finch, Phrygilus alaudinus - Related to Yellow-billed Blue Finch, Porphyrospiza caerulescens
 * Carbonated Sierra-finch, Phrygilus carbonarius
 * Mourning Sierra-finch, Phrygilus fruticeti