No those aren't from a woodpecker , at least non that live in the northeast. I have woodpeckers going crazy in my neighborhood for the last month or so , it's easy to find the trees they are in by looking at the ground around the tree ... there will be chunks of tree strewn about , those things make big holes to get to the bugs inside ... and if there are bugs in a tree 30 ft off the ground it's the same outcome ... cut it down before it falls down.