In Mneedham's picture that was the result of the pileated trying to build a nest cavity, not looking for food. I actually camped one time for a week in the same spot in Florida, and watched a P' woody pick out a tree not less than 50ft away in clear view. Every day from Sun up to Sun down that poor bird worked himself to a frazzle pecking that hole out, only stopping to go get a drink of water. After about 3 days he was able to get halfway into the hole pecking. By week's end he had brought a 'lady friend' by who seemed unimpressed as the poor bugger kept cleaning out the hole throwing the chips out like a mad man. I felt sorry for him when she flew off, with him in tow. But before I left they were hanging around the tree and I think he found himself a keeper!