Downy Woodpeckers nest in a tree cavity excavated by the nesting pair in a dead tree or limb. In the winter, they roost in tree cavities. Downy Woodpeckers forage on trees, picking the bark surface in summer and digging deeper in winter. They mainly eat insects, also seeds and berries. They are a natural predator of the European corn borer, a moth that costs the US agriculture industry more than $1 billion annually in crop losses and population control.
As with all animals, foraging becomes an important role in an animal’s ability to survive and reproduce. The Red-bellied Woodpecker expresses foraging behavior by catching or storing food. The woodpecker uses its bill for foraging as a chisel drilling into bark or probing cracks on trunk of trees. In this manner, the red-bellied woodpecker is able to pull out beetles and other insects from the tree with the help of its long tongue. This behavior is also seen for storing food from other animals by hiding food behind bark or deep in cracks of a tree.