it has been cold here for the last 2 weeks(below 15 degrees). it has been too cold to open the hives to check them. This morning at my firsr hive that I started to regress I found many parts of bees on the landing board. So I reached in with a wire piece and pulled out about 100 bees that were in parts. I have a good mouse gard on this hive and there were no tracks in the snow around the hive and the hive next to it had no bee parts on the bottom board.
Any ideas on whats happening. I can still here activity in the hive

Clinton Bemrose
just South of Lansing Michigan