Still have the swarm in the back yard cause I've been too lazy I mean busy to move it. They let out a roar about 5:30 this evening and I went and watched, all orientation but seemed like over half the hive was involved. I had to run off so I went by my other hives, there were 6 down there doing the same thing. Makes me wonder what sets it off at about the same time. They can't see the sun in the hive, just a dance.