It was a horse tie up and he went from one side to the other, peering into the cross tube. I suppose, as an acorn woodpecker, he was trying to figure out where he was going to find a nut big enough to fit the hole.
Forgot I took some shots from the west ridge top looking back toward Saddleback yesterday -- three shot pano. I did a six shot, which has a nice sweep, but would be pointless posted here