Can you help me to understand what might have happened to the colony so I can prevent this in the future. This was a super stong colony going into the winter. I checked it about a month ago and it seemed to be ok. Today it got into the mid 50's so I checked out some of the hives today and this is what I found. 99% of the bees are gone. A handfull of dead bees on the bottom screen and on small cluster of bees. I see eggs everywhere. The frame the small cluster is on is fill of eggs on both the left and right side. The cells are literally packed with eggs. As much as they can hold. The dead bees also have eggs on their bodies. I have only been doing this a few years but I have never seen or heard of anything like this. I should also mention that I left a full super on this hive going into the winter and it was still about 3/4 full. Any input would be appreciated.