Parent: Thraupidae (Tanagers)

└─ Phrygilus

└─── Phrygilus alaudinus (Band-tailed sierra finch)

└─── Phrygilus atriceps (Black-hooded sierra finch)

└─── Phrygilus carbonarius (Carbonated sierra finch)

└─── Phrygilus dorsalis (Red-backed sierra finch)

└─── Phrygilus erythronotus (White-throated sierra finch)

└─── Phrygilus fruticeti (Mourning sierra finch)

└─── Phrygilus gayi (Grey-hooded sierra finch)

└─── Phrygilus patagonicus (Patagonian sierra finch)

└─── Phrygilus plebejus (Ash-breasted sierra finch)

└─── Phrygilus punensis (Peruvian sierra finch)

└─── Phrygilus unicolor (Plumbeous sierra finch)