You might think so keeper. We shall see.
I would think it a bit more than a cleaning activity sqkcrk or wouldn't seem like any kind of cleaning activity I can think of, you?
It was a very nice, warm sunny day outside and sunlight is the best for vision. I had shaken most of the bees from the frame but a handful at best of nurse bees remained. No bother and nothing unusual. Can you think of a better place to be than out among the bees doing your thing? Pretty peaceful place to spend the day I think.