Typically the work of a Pileated is more easily identifiable as they create rectangular holes which are deep and vertical while searching for carpenter ant nests in dead trees. I am guessing that a Pileated has taken advantage of this well rotted tree with an existing cavity based on the size and disbursement of woodchips; but I cannot rule out that another animal is responsible.
The largest surviving woodpecker native to North America, the Pileated had become rare due to the clearing of old growth mixed forests; but has since made a gradual comeback by adapting to human populations and second growth forests. - Norma Manning
Good one, I really love reading these kinds of blogs. Keep updating and write something on Land Use Planning New Hampshire and other things also.
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