Feeding Behavior

Forages mostly in trees and shrubs, sometimes on ground. Except when nesting, usually forages in flocks.

Eggs

3-4, sometimes 2-5. Pale blue to blue-green, blotched with brown, gray, purple. Incubation is by female only, about 11-14 days. Male may feed female during incubation. Young: Both parents feed the nestlings. Young leave the nest about 2 weeks after hatching. 1 or 2 broods per year.

Young

Both parents feed the nestlings. Young leave the nest about 2 weeks after hatching. 1 or 2 broods per year.

Diet

Mostly seeds, some berries and insects. Seeds make up majority of diet, especially seeds of box elder, ash, maple, locust, and other trees. Also feeds on buds of deciduous trees, berries, small fruits, weed seeds. Will feed on oozing maple sap. Eats some insects in summer. At bird feeders, very fond of sunflower seeds. Will eat fine gravel for minerals and salts. Huge bill allows it to crack large seeds with ease.

Nesting

In courtship, male "dances" with head and tail raised, wings drooped and vibrating, as he swivels back and forth. Male frequently feeds female. In another courtship display, both members of a pair may bow alternately. Nest: Usual site is on horizontal branch (often well out from trunk) or in vertical fork of tree. Height varies, usually 20-60' above ground, can be 10-100' up. Nest (built by female) is a rather loosely made cup of twigs, lined with fine grass, moss, rootlets, pine needles.