Fort Benning, Georgia, is one of the most active military bases in the world. But its thousands of acres also contain longleaf pine forests where endangered Red-cockaded Woodpeckers nest. It takes years for a woodpecker to excavate a nest cavity. To help the species, biologists climb high into the trees to carve out nest cavities that will satisfy the birds.

You can hear more about the efforts to save woodpeckers at Fort Benning on the Threatened podcast.