Yesterday evening I noticed some behavior I had not seen before. It was almost dark and the entrance to both my hives had a bunch of bees hanging out on the entrance. They were still there after dark. I got up at sunrise today and there were bees hanging out again although not as many as last evening. They have never done this before. Usually they are all in the hive 30 to 45 minutes before dark. There may be some stragglers but for the most part they close shop before dark. The only thing I did yesterday was to put the top feeders back on the hives and sprinkle some cinnimon on the inner cover for ants. Not sure if the cinnimon did this or not. I have used it before and did not notice this.