Food Preferences of the Bluebird
Bluebirds are foragers who eat a wide variety of berries and insects. Berries they prefer are mistletoe, blueberries, currants, juniper berries, wild holly and sumac to name a few. The insects they most often go after include grasshoppers, crickets, beetles, caterpillars and spiders.
Suet can also be a valuable source to the bluebirds. They are especially attracted to the insect and fruit blends.