A species of forest edge, open pastures and scattered trees, the Eastern Bluebird perches conspicuously at the tops of bushes, wire fences or fence posts. Their food includes berries, earthworms, and insects that are often captured by swooping down to the ground from a low perch. It nests in tree cavities and nest boxes when available. In the southwest, this species nest exclusively in mountain meadows. The nest is lined with a loose array of grass, pine needles and twigs. During the winter it forms small to large flocks.
