A book titled Red Bird, Green Bird, which OARDC published in 2009, has this to say about the plant- and people-helping diet of bluebirds: “Seventy-six percent consists of insects and other small animal forms; 24 percent is of vegetable substances, taken mostly in winter. Of the whole food, beetles constitute 28 percent, grasshoppers 22 percent, and caterpillars 11 percent. Its only offense is the eating of a few beneficial beetles, amounting to 8 percent of its food for the entire year.” Learn more about bluebirds this Saturday (Feb. 23). (Photo: Ken Thomas via Wikimedia Commons.)