I learned a couple things opening up my hive today. Bees are more angry in the cold. Also, I noticed when I opened the top, the bees had their hind ends up in the air and were fanning their wings. Why is that? One more question, what is the coldest you can syrup feed? I know, I would heat their syrup up to about 85 and put it in their hive and they drank that quick. Must have liked the heat.