I’m lucky enough to live by Jones State Forest which has a population of the endangered Red Cockaded Woodpeckers. It was too cold today to go out to try to catch some photos but I learned quite a bit about them today.
They carve out holes in live pines to build nests. Mom and dad mate for life and split the childrearing. The rangers at the forest help them with prefab nests inserted into holes in trees. Notice the flashing around the hole to maintain the size and the screening underneath to give wayward chicks something to hang onto.