This dead tree, riddled with holes, looks like it should fall over any minute. But it’s actually very important to Acorn Woodpeckers as a place to store food. We saw several of these trees, known as granary trees, on our trip to Oregon and California. The woodpeckers make the holes and pound acorns into them. A tree like this will be used for many years and new holes will be added as necessary. This photo was taken in Pacific Grove, California.