A guy called and said that he had bees in some pallets. He had built a small stage out of pallets and flooring for a graduation. then he stacked them and covered them with a tarp. Scout bees came along and said, “Look girls we have found a place that is out of the rain, is easy to defend and has solid surfaces to attach our comb to.” So they moved in. Of course they couldn’t move into the 1st one, they had to build in the very bottom one. They had lots o brood and weren’t too bothered when I moved them to a nuc.