
This seems to be one busy bird. The acorn woodpecker is drilling holes in this Douglas Fir at Point Reyes National Seashore. There were tens of thousands of holes between several trees with acorns in them. Half of their diet is one of eating these acorns. They must have to let them age to let the tannins, the bitter factor, leach out some. They also enjoy sap, nectar, fruit, and insects. When I went to school at U.C. Santa Cruz there was an acorn woodpecker outside of the dorms. He was always making new holes in the redwood trees. It was always a pleasure being entertained by their passion for the harvest.