Acorn woodpeckers also feed by sallying for flying insects and gleaning trunks, and they often eat ants (as reflected in the species’ scientific name). Polytypic. Length 9". A boldly patterned ...

Acorn woodpeckers doing the spread-wing display. Researchers had long assumed that acorn woodpeckers opting for a rare form of polygamy, in which co-breeding siblings are forced to compete to mate ...

If you have a dead tree, here’s how to cut it down safely. In the western region of the U.S., acorn woodpeckers peck away to make small cavities to store acorns for later use. These granaries ...

Male (left) and female (right) acorn woodpeckers. Researchers had traditionally explained the evolution of acorn woodpeckers’ polygamous co-breeding with a concept known as kin selection.