A bluebird’s diet depends on the season. They like to eat a variety of snails, grubs, caterpillars, grasshoppers, crickets, beetles, ants, spiders and other insects — definitely not picky eaters. Bluebirds stay in their range year-round, meaning they don’t migrate during the winter. So, when insects are less abundant during the winter, bluebirds happily feast on fruit.
If you have a bird feeder, add live or dried mealworms to get a bluebird’s attention. There are Eastern Bluebirds (pictured) that call east of the Rocky Mountains home, and there are Western Bluebirds that call west of the Rocky Mountains home.