Juncos are small American birds that forage on the ground for insects and seeds. They are in the order Passeriformes and the family Emberizidae (seed eating birds with a distinct bill). There are at least four species and 10 subspecies.

Dark-eyed Junco, Junco hyemalis
Gray-headed Junco, Junco hyemalis caniceps
Oregon Juncos, Junco hyemalis oreganus
Pink-sided Junco, Junco hyemalis mearnsi
Red-backed Junco, Junco hyemalis dorsalis
Slate-colored Juncos, Junco hyemalis subspecies group
White-winged Junco, Junco hyemalis aikeni

Guadalupe Junco, Junco insularis
Yellow-eyed Junco, Junco phaeonotus
Volcano Junco, Junco vulcani