It was 42 F this morning and when I checked on the bees through the front entrance they appeared to be in full cluster. While I was looking, a couple of yellow jackets came out the entrance. I guess they were taking advantage of the situation to grab a bit of honey. Then I thought, "Hey, here's the way to get those cleaned up supers off the top of the hive without fuming them again!" I'll grab them in the morning before they break cluster. Bugs, still teaching me.