All the woodpeckers will visit feeders for seeds, nuts, fruit, and suet. All except the Pileated will use nest boxes although the Downy and Hairy rarely do.
Flickers often forage on the ground for ants which make up about half of their diet.
They nest in dead trees and may be displaced by Starlings. The Yellow-bellied Sapsucker drills concentric rings of holes around tree trunks to drink sap. Vertical lines of holes indicate where sap was found. The Sapsucker returns many times to drink the sap and eat the insects it attracts. Hummingbirds, titmice, and nuthatches also feed on the sap.