Yesterday I removed the ventilated shims on my hives because we are finally going to get some cold weather. When I popped the top most of the hives had 10-20 bees milling around on the inner cover. It looked like they were harvesting propolis but I don't know that for sure. The tops of the inner covers had propolis on them so that's what I figured. To the hive, when I pulled the telescoping cover, all the bees on the inner cover had their butts raised in what I would have thought was a defensive position. But they were actually much more docile than usual. Anyone know what this position means? I've seen it periodically on some bees, but never where all the bees I could see are doing it at the same time. By the way, they all still have generous stores.