Why was the woodpecker pounding such a puny branch?
The Hairy Woodpecker could only be seeking food. The branch was too tiny to surround a roost cavity.
I could see why a woodpecker might choose this red oak to forage. It has several branch stubs: jagged wounds where fungi can enter. Many wood-boring insects prefer laying eggs on decayed and damaged trees. The hatchling larvae can easily chew their way inside, where depending on species, they may overwinter.
But this particular branch? It’s so skinny—maybe four inches in diameter—it must have been frozen to its core in yesterday’s 14-degree weather. Wouldn’t an insect mom want an egg-laying site with more mass? A trunk or a thick limb that would retain warmth to help her babies survive a Michigan winter. I was sure the woodpecker wouldn’t find food in this branch.
He pounded and chiseled. It took him just six minutes to prove me wrong.
Image Credits: Carol Doeringer.