Offering food sources and nesting boxes or bluebird trails can help increase the number of bluebirds. How to Attract Bluebirds to Your Backyard Bluebirds prefer to live in open park lands, pastures and meadows. Bluebirds eat large quantities of insects. They like to perch on fence posts or small trees and swoop down to eat insects on the grassy ground. Bluebirds won't typically visit your seed feeders, but will enjoy berry or insect suet.
Bluebirds nest in natural tree cavities and old woodpecker holes.
When natural nesting sites are scarce, bluebirds will readily use nesting boxes built to correct dimensions. Mount bluebird boxes on a fence post or pole, low to the ground no higher than 4-5'. Situate along woodland edges facing open land. Keep as far from human habitation as possible. Providing nesting materials is a strong factor in attracting nesting bluebirds since collecting nesting materials can take 100 s of trips.