These Junco's are considered sparrows. They are small birds.
A hundred years ago, (click here) many birds carried the name of “Oregon,” including Oregon Jays, Oregon Chickadees, Oregon Titmice, and Oregon Towhees. One by one, those names fell into disuse or were discarded. The last bird bearing the state's name is the Oregon Junco.
Juncos have considerable geographic variation, and many North American Juncos once treated as separate species are now known to freely interbreed where their ranges overlap. Thus, the Slate-colored Junco of the East, the Gray-headed Junco of the Southwest, the White-winged Junco of the Black Hills of South Dakota, and the Oregon Junco were combined into a single species and given the name Dark-eyed Junco (Junco hyemalis)....
...Oregon Juncos forage quietly on the ground, flashing their white tail feathers with each hop to communicate their location to their mate or other members of a flock. When flushed or when interacting with other juncos, they give a hard, distinctive call note.
The song of the Oregon Junco is a sweet trill. If you listen closely, you can hear the rapidly delivered notes vary in frequency, a richness often lost on human ears but undoubtedly important to the junco. Songs vary among males, and a few birds sing a two-part song consisting of distinct and different trills.
