We looked in the hive and winterized it today. To winterize it we put a cork in the bottom hole, took out the feeding box, bucket, and inner cover, we put a fiber board where the inner cover used to be, we put a black box that had a hole in it that matched where the deep’s hole is over the top deep, then we put the top and the rock back on. At some point I’ll have to flip the entrance reducer so no mice can get in. My mentor told me at some times the fiber board will be a block of ice. The fiber board is there to collect the moisture the bees make. I’m not sure what the box is for but it’s black to help heat up the hive.