Eastern Bluebirds have a flexible approach to migration. They may move only as far south as is needed for food and shelter and may move further south if conditions hurt their chances to their survival.
Bluebirds living in higher latitudes may head south if food becomes scarce or temperatures too cold. Mountain bluebirds typically migrate to lower elevations during the same lean seasons.
This migration pattern is not consistent with all Eastern Bluebird populations. In the southern part of their range the Eastern Bluebird is a permanent resident
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