I installed the 3lb packege last Friday, today was the first day it was warm enough for them to get out and fly. This is what I found:
It's kind of hard to see but there a cluster of bees underneath the bottom board in the hole in the cinder block. I would say the cluster is about the size of my fist.
The bees I saw flying were coming and going from the entrance.
Should I be worried? I've never seen my bees act like this before.