Junco (Junco hyemalis)
A dark, slate-gray sparrow with conspicuous white outer tail feathers
and a white belly. An abundant species, it breeds in brushy, cutover
forests and is usually seen by urban dwellers when transient or
wintering flocks come into residential areas. Juncos often winter at
feeding stations in cities, suburbs, or towns.
It breeds from the tree line south to the northern states, farther south
in the mountains. It winters in most of the U.S.