I heard lots of bees buzzing today while I was standing in my yard. I went to my hives and a nice size swarm was just moving into one of my old empty hives. I've been keeping 9 yrs now. It was so exciting to witness because in 10 minutes they were inside and the flurry was over. Yes, I was jumping up and down. The hive has 2 boxes with frames of drawn comb. What do I do next? How long should I leave them be before opening the hood and taking a peak? Any other stuff I should know? Ive never had this happen.