Pileated Woodpecker Holes in Your Tree: Should You Worry?

Identifying the Carpenter

Large, rectangular holes with big wood chips at the base of a sourwood (or other hardwood) tree are the signature of the pileated woodpecker—North America’s largest woodpecker. These aren’t feeding holes; they’re nest cavities.

Why This Tree?

Pileated woodpeckers prefer trees with soft, decayed heartwood. They locate suitable trunks by drumming and listening to the resonance—a form of sonar. Your tree’s “soft core” made it an ideal nesting site, typically 15 feet or higher up.

Is the Tree Doomed?

Not necessarily. The tree has likely been compartmentalizing decay for years. The woodpeckers are exploiting existing rot, not causing it. Many trees continue thriving for decades with pileated cavities.

Ecological Value

These cavities become critical habitat for owls, ducks, bats, flying squirrels, and countless other species that cannot excavate their own homes. Having a nesting pair is a sign of a healthy, mature ecosystem.

What to Do

Enjoy the show. No intervention is needed. The woodpeckers are protected by federal law, and the tree is doing what trees do: adapting. If the tree eventually becomes hazardous, consult an ISA-certified arborist—but don’t remove it just for the holes.