According to Audubon.org and biokids.UMich.edu, Carolina wrens breed between March and October. Both parents bring insects (caterpillars, beetles, grasshoppers, crickets, snails, and even spiders) to their nestlings for 12-14 days after the eggs hatch, and for a few weeks after they leave the nest. Berries and seeds can also be on the menu. Mom and Dad often sing in duet.Watch this next: A mother blackbird feeds brand new baby birds in their nest. Also fun: The Cornell Lab of Ornithology’s Bird Song Hero.