Dark-eyed Juncos feed on insects such as caterpillars, moths, ants, and wasps. They eat seeds from many plants, including hemlock trees, sorrel, and thistle. At the feeder: Juncos like millet, black-oil sunflower seed, cracked corn, and bread crumbs. They are primarily ground feeders and readily come to platform feeders. 

Dark-eyed Juncos are found at the edges of woods, in old fields, in hedges, in city parks, by roadsides, in gardens, or in spruce or cedar tree patches. 

Dark-eyed Juncos are between 5 to 6.6 inches in length. Males are slightly larger and more brightly plumaged than females. While plumage characteristics vary, all Dark-eyed Juncos exhibit a basic plumage form. They are predominately gray above with white or pinkish wash to the undersides, with white outer tail feathers.

Dar-eyed Juncos have been known to live as long as 10 years in the wild. 

According to Project FeederWatch data, the Dark-eyed Junco is seen at more bird feeders across North America than any other species.