Well just found number three hive to be no longer in existence. Had built up to 5 this summer and now am down to 2. Lost 2 to SHB but this one has me curious. No SHB, no wax moth and plenty of stores, all appeared to fine. Checked the hives this weekend and this was empty. It was almost completely robbed {still had 4-5 frames of honey and 4-5 frames of pollen left} robbing was evident though. But this is what is kind of strange to me. I found a total of "4" dead bees in this hive. I could find no reason why they left! Oh well like I said "I am not complaining" Just curious to what may have been the cause of this? I figure it went queen less and the girls drifted to the other 2 hives. Any thoughts?