Upper Marañón Valley in eastern Cajamarca, in north-western Peru. Considered by some authors to be a subspecies of Black-capped Sparrow (Arremon abeillei).
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Subspecies
No subspecies.
Considered by some authors to be a subspecies of Black-capped Sparrow (Arremon abeillei).