Timelapse of a Pileated Woodpecker creating a cavity

Last September I walked by the dining room window and saw a Pileated Woodpecker in a dead snag, about 75’ from the house. The tree was diseased and in danger of hitting the house, so a couple of years ago we had it topped, but left it standing – just for the woodpeckers. I cracked the window and slipped the scope out the window, and videoed him creating what appeared to be a new cavity, but he ended up making just a shallow depression. Six months passed, and I saw him only occasionally. In March I loo