*Adjusts Nerd Glasses*....harrumph... What you are seeing good sir is the results of the feeding habits of the Dryocopus Pileatus of the order Piciformes and family Picidea, also known as the Pileated Woodpecker. More commonly known in more humble circles as the Cock of the Woods.
Basically one big assed woodpecker about the size of a crow. They hammer away at dead trees to get to the grubby, insecty goodness within those decaying boles leaving wood chips and debris in their wake...
So its safe to unlock the door and put down that hog leg, the Capers women and yourself are quite safe. Than again it could be proof of a 'squatch or so I've seen on TV. Really What else could it be?