We've had two nights of really cold weather and I was concerned about Hive #1. I didn't see any bees flying in and out and looked under the hive and saw no bees. Hive #2 had a few bees flying and I could see a large clump of bees on the screened bottom board. (it's difficult to look under a hive without laying on the ground but anyhow I got it done) So today with sun and warmer temps in the 50's, I looked at both hives around lunchtime. Both hives are active and bees were going in and out. I'll open the hives and do a quick check when it warms up for a couple of days - it's damp and wet today.