Roaming is a very profitable business, but for some reason, not everyone succeeds. If you really really want to catch a swarm or even a few, then the first thing to do is make a good trap.
It should be light, without gaps, and have sufficient volume. Usually, the body is knocked together from thin planed boards, the bottom and roof are made of plywood or fiberboard. The body is made of coniferous boards with a volume of 10 Dadant frames with increased space. In small traps, bees are poorly populated and do not go to old ones at all.
From the inside, you can rub the body with propolis, put a lemon balm or mint bush, put one or two frames of brown sushi and several frames with sheets or strips of foundation across the frames. If the frames are not enough before filling the case, then they can simply be attached with small nails. But they should be hammered so that later it can be easily pulled out. Outside, the boards are burned with a blowtorch until black, so that later the trap cannot be seen from a distant distance.
Now you need to find a place to set a trap - this is the most important task. The trap should be no closer than 4-5 km from the place where you want to place the bees, but no closer than 2 km from the nearest apiary. It is necessary that there are good honey plants nearby. A tree is well suited for installation, it will reliably hide the trap from prying eyes. And for some reason the swarm goes better on the spruce.
Raise the trap to a height of 3-5 meters, set it horizontally if possible, otherwise the honeycomb will be rebuilt incorrectly. The direction of the entrance does not matter, only it must be free for the passage of bees. To prevent the trap from accidentally falling, attach it with wire or twine.
To better attract swarms, you can rub the outside of the trap with grass. The trap is checked at least once a week. Inhabited traps should be removed late in the evening or early in the morning. And yet, traps should be set about two weeks before the start of swarming.