Last year was my first year with bee's. I live in Minnesota and I expected my biggest challenge would be the winter. My two hives had activity on warm days up until recently. Last weekend we had high 30's/low 40's so I had a look. It appears I may have assisted in their demise. I wrapped the hives in roofing felt and a large amount of bee's on the failed hive were stuck between the felt and the hive body. Never made it back in the hive. Thought I was doing a good thing. Live and learn.
The 2nd have must have been wrapped better. Not nearly as many bee's between the felt and the hive body. I removed the felt to be safe. I took off the quilt box and was met by a lot of girls and some started flying out. I quickly put the lid back on without being able to take a good look.
I took the failed hive down and examined it. They had gone through most of the lower box but the top box was still quite full of capped, and some uncapped, honey.
I'm wondering if I can expect the same stores left in the hive that's still going? Should I add some kind of winter patty, sugar, fondant?
We had had a pretty mild winter so far this season. Only a handful of times in the below 0's. I find it remarkable how the bee's can keep going in such an environment.