These two male Pileated Woodpeckers hopped for about 15 minutes. Likely, they are practicing courtship. Birds of the World calls this behavior "communicative interaction." It seemed like play and reminiscent of a time I was at Mote Marine/Save Our Birds and played hide-and-go seek with a Pileated.
Here is the video I took today (May 22, 2021).
I sat on the edge of the pond. While there, an American River Otter swam up unaware I was there. It was surprised when it saw me. Startled, my photograph is caught-off-guard blurry! It had caught a fish.