As a side-note to seeing dead drones: I moved some hives last week. One of them was a Nuc. It was a 400 mile move, done completely at night, with screens. As I installed the hives to their new location the next morning, and removed the screens, I noticed lots of dead bees on the entrance of the Nuc. Closer inspection showed that all the dead bees were drones. I moved from "flow" to "flow". The queen in this Nuc is abut 4 weeks old with a solid brood pattern. The drones did not come from this hive. Apparently, they were "executed" as the cluster woke up. ... it's the only explanation I have anyways. ... just observations.