Well, the problem has gotten worse. The little creep seems to have found himself a girlfriend! Both of them were pecking away at our tiki when I got to the house today

I didn't have much handy, so I stuffed the hole with baby wipes. When my DH arrived at lunch, he told me that there were wipes all over the lawn. My feathered nemesis somehow pulled them all out of his hole. Our next step is filling the hole with wood filler and then covering the tiki with plastic wrap like the article above recommended. Somehow I think he'll be back as soon as we take the plastic off, though. I swear, I am >>thisclose<< to becoming a woodpecker serial killer right now