So far, they are staying put. I added the super on top, so maybe that is keeping them there. Only time will tell. The blackberries have just started to bloom, and catalpa's are in full bloom. There is still yellow clover in bloom too, but it's towards the end.
Checked on the hives again today. I probably won't have much chance to check on the hives for the next couple of weeks, so I wanted to stay ahead of them.
Hive #1 was doing well with lots of brood, and many more blackberry blossoms have opened, so I added the super.
Hive #2 so far is staying where they are. Super is already on them.
Hive #3 doesn't have a queen after all, it's gone laying worker. I'm going to just let them die out, unless I get a swarm, then I'll shake them out and put the swarm in that hive.