Eastern bluebirds (Sialia sialis) are a species of passerine bird found in North America. They are cavity nesters and require open areas with scattered trees and shrubs for breeding and foraging. Some common Eastern bluebird habitats include:
- Fields and meadows with scattered trees and shrubs
- Open woodlands and forests
- Orchards and vineyards
- Parks and gardens
- Cemeteries
- Golf courses
- Vacant lots
Eastern bluebirds typically nest in cavities in trees, fence posts, or other structures. They prefer cavities that are about 1.5 inches in diameter and 4-6 inches deep. Bluebirds also use nest boxes provided by humans.
Foraging for insects and berries is a common activity of these birds. Their diet consists primarily of insects, such as grasshoppers, beetles, and caterpillars, as well as fruits and berries. Bluebirds often perch on fence posts or other high vantage points to scan the ground for prey.
Eastern bluebirds are migratory birds and winter in the southeastern United States, Mexico, and Central America. They return to their breeding grounds in the spring and summer to nest and raise their young.