I will always be trying to figure out how to prevent swarming - I hate losing my bees so it's always on my mind in the spring. I had two hives at my bee yard 14 miles north of my house that I knew were primed to swarm so I did early splits, put empty frames in crowded brood deeps , saw brood was hatching and being filled with nectar and queen cells started. I pulled the old queen before the queen cells were capped, made a split, and the hive swarmed anyway. The second hive was going the same direction, 2 weeks ago empty queen cells but pulling the old queen didn't work, so I didn't. Last week, 25-30 swarm cells and bazillions of bees- couldn't figure out what to do so did nothing and it rained - and rained some more! Went yesterday and a big black queen was piping her heart out and prancing back and forth on the frames full of almost hatched queens. Don't only virgins pipe? Still didn't know what to do. Went home, slept on it, went back shortly after 7:00- storm is blowing in- not my smartest move. Ten minutes I have the hive lid on the ground and 3 honey supers stacked with the top deep full of bees on top of it. The bottom deep is still on the hive stand and I can hear a queen piping from it as I begin going thru the top deep. I find 5-6 hatched queens, definitely virgins, small, red and piping back and forth. I don't find the black queen but I make a split because the thunder and lightening are crashing and there's too many bees( should have tried 3 deeps, maybe). I know, too long a post but help! What am I overlooking? Yesterday, I even thought of taking off the three almost full supers to keep them fro taking it with them.