As noted earlier, woodpeckers, including this pileated woodpecker, are taking a great interest in our emerald ash borer infested trees. The large holes of this species are quite different from the smaller excavations of other woodpeckers. We frequently see pileated woodpeckers around the FWG, most often in winter, and signs of their activity are indicated by a large pile of big wood chips below a tree. Here, the pileated is following up work initially done by a hairy woodpecker, who has flaked off the bark looking for insect larvae, whereas this guy will truly excavate a large hole!