eating

Hi. I have three hives and in one of them, the bees are eating their own honey stores. I have a top feeder and have recently switched to 2:1 sugar water (with a little apple cider vinegar added for preservation). I noticed that it was starting to happen last week, so I did another inspection...

So, last time I was worried about too much pollen... seams like they took care of that, lots more space for larva and lots of eggs and little ones. Now, it would seam that the bees are opening up some of the drone brood. And possibly... eating it? (They have lots of pollen, about three bars of...