I have a hive on my porch. I've got this weird gap under my porch railing so I have the hive right up against it, and their entrance lines up. All summer that's been my weak hive, even before it got moved twice and messed with by people who should have known better (long story), but it's not "weak" just "weaker" than my other. I haven't been worried about it at all, good stores for winter, good population, no mite problem (just a few) etc. They've been cozy and dry there on the corner and get a little sun. We had our first freeze this weekend, three nights in a row where it was 30F or lower. I put in the entrance reducers with the freeze coming on and put my new inner feeders filled into both hives. With my stronger hive there's a big hole in it, and I stuffed that with fabric, like I've done the past 2 winters with the same hole in, because I've been too cheap to buy them a new box. Outside my "stronger" hive there were about 10 dead bees this morning. Figured they got too cold. Outside this porch hive, there are at least 100 dead bees. I didn't see any roaming around dying, like maybe I'd see with some pesticides, only tons of worker bees dragging out bodies over and over. :sad: I couldn't see any other problems with them, no wing deformities or lots of poo like they had nosema; no hive beetles or moths or mice or anything like that. All the dead bees looked really young, which is of course the bees they need for winter rather than the aging lady foragers. Both hives are double deeps, the stronger has about 1/3 again as many bees as the weaker. I've just never seen this many dead bees after 1 cold weekend, this is like...after a couple months of winter and finally a warm enough day to clean numbers of dead bees. We were thinking to move the weaker hive back to the side of the house with the stronger one, where they get more daytime sun then they do now on the porch. But, that gets more wind and rain, and will get more snow on it, whereas the porch is fully protected from wind. It wasn't warm enough to go in today, it might be day after tomorrow but I'm like, rawr, in a panic. If I can get in there, what should I be looking for to try to figure out what caused this? Any thoughts?