These two photos (main album and extras album) were two of an extended series I took as this sanderling played with this poor little minnow or whatever it was for several minutes. It reminded me of fishermen who fish using a "catch and release" policy. This is obviously part of the 'release' activity. 'Catch' is in my main album - https://365project.org/taffy/365/2022-01-30
@falcon11 To the extent that I know I'm anthropomorphizing, it was playing with it. I could imagine someone saying 'quit playing with your food.' He would toss it in the air, go to it when it landed and poke it. Pick it up again, swing it around, toss, pick up, and repeat. It was quite funny.