Hi - this may be a ridiculous question. But here goes. I put candy boards on both hives (1 Carni and 1 italian). Carnies were cranky. Italian hive tried to kill me - seriously - little brats.
Anyway - on my way out to run to the store I stopped by they hives, after dark and 27 degrees outside. Why not just look right? Put the flashlight in through the hole in the candyboard. There was so much movement and activity that I could see, I couldn't believe it. It's after dark and in the 20's - is that typical of nighttime movement in a hive, especially in the cold? I always just figured they sort of slowed down at night.