Dark-eyed Junco (Junco hyemalis) and Guadalupe Junco (Junco insularis) (Sibley and Monroe 1990, 1993) are lumped into Junco hyemalis following AOU (1998).
Considered by some authors to be a subspecies of Yellow-eyed Junco (Junco phaeonotus). Considered by some authors to be a subspecies of Dark-eyed Junco (Junco hyemalis).