Do you know the difference between play flights/"orientation" flights, and robbing. could be either.If the bees are fighting each other then it could be robbing.Watch for a few minutes, orientation flights, the will come out and hover right in front at first, then they will expand that a little father out, etc. If it is robbing, then you should be able to detect fighting. If it is robbing you need to close up all but one hole. Hope this helps.