The swarms seem to travel the same routes that others have in the past. One of my traps was placed near a busy intersection in a big oak tree a couple hundred feet off the highway and I caught a swarm there within a few days of putting it up. I had been called to remove a colony from a man's attic in that area a couple years back and then also I had noticed bees in a hollow tree on the other side of that intersection. So I figured with the history of bees using that area, even though there's no beekeepers close by, would be a good bet. And so it paid off. I had another trap on a tree line behind the church I pastor and caught two swarms on the same tree bait box this spring. Again, no beeks nearby, but the bees seem to travel that route regularly. Now here's the interesting part. I have 4-5 hives in each of three different bee yards and have not caught a single swarm in any of them! Ha! Go figure.