Sadly, the girls are gone. I don't understand it. They had 3-full, medium supers of honey, a significant amount of pollen in the brood chamber and they are gone. I have another hive that is all but wiped out. They had 4-full supers. They cleaned out the one right above the brood chamber and stayed there. They didn't move up into the full supers. I opened them up to put some mega bee on them today. I certainly did not expect what I found. 2009was my first year as a beekeeper in North Texas. I kept bees in Houston for several years and never lost a hive during the winter. Does anyone out there have any ideas why they did not move up into the full supers. I removed the queen excluders this past fall?