I brought home a feral log hive last November. The tree had fallen and I cut a 6 foot section out and loaded it the truck. I placed in out back and covered the canoe shaped hole with luan and gave a small entrance. This colony survied the winter. One day about a week ago my wife and I got to observe them swarm out and into the woods. I trekked for about an hour hoping to locate, no luck. I had bait hives near the log on the ground and one on top of the log anticipating that colony swarming.
So the next day I made swarm traps (D. Coates style) and put one in a tree about 23 feet resting on an old tree stand. I placed top bars with foundation comb guides, brushed the inside with some melted comb(honey wax and whatever else was in the old comb) and a lemongrass oil swarm lure(cotton inside a straw)
3 days later I had activity at the entrance. Yesterday I inspected and sure enough they are building out comb.
I suppose it is possible that the log hive swarmed again or that the prime swarm moved in. Either way I managed to catch a swarm and am very excited about that. I inspected all my other first year hives and nuc's and none appear to have swarmed, at least to my untrained eye