I went out to the hives yesterday to see how they had been doing. A while back, I swapped to the screened bottoms with oil trays for the SHB. The first time I checked the trays (a couple of weeks ago), there were many SHB (about 50) in the oil in each tray. I cleaned the trays out and refilled them and put them back in. I checked them yesterday, and there were only 3 or 4 SHB in each tray. That made me very happy! I tried lifting each hive and couldn't. So I am optimistically saying they're ready for winter. I have hive top feeders on, and I gave them each a gallon of 5:3 syrup yesterday. I figure since the temps are in the 60s and 70s in the daytime, but there's not much growing for the bees, I'll feed them so they don't start using their stores until it gets cold. They still seem to take the syrup eagerly. Does that sound right? Or should I just stop feeding and let them fend for themselves now?