My orchardist had advised me Thursday night to lock up my bees as he was spraying on Friday and Saturday. When I checked them yesterday morning, a lone bee was on the outside of one robber screen, I figured it was one who didn't come home before dark. Later in the day I checked and there were a few bees. I just went out and checked again, and there are several bees. If the doors weren't shut and my bees on the inside of the robber screen, I'd say it was normal activity, except the bees on the outside weren't carrying any pollen. Would these be robbers, even though there are lots of flowers in bloom? Or could they be from rental hives that moved leaving them behind, and are now looking for a new home? I suppose they could also be mine, just home late from a bender, eh?