>>2392841Well, they probably wouldn't migrate into an empty box right, the swarming season is basically over.
But you CAN still go out and buy a swarm from a seller and place it into the hive and let them do their thing. But that might cost a bit of money you probably don't want to spend.
But if you happen to find a swarm out in the wild, you can always do the catching yourself if you're careful.