It looks like our captured swarm is adjusting well to their new home. Whew! We added a second brood box a week or so ago and today it was full of very busy bees. Just what we wanted to see.
Some of their co-workers did not take to the move. They still are hanging out in the oak tree where we hung the swarm box. That will happen when you do not move a hive far enough away from the original hive (at least 2 miles is suggested). Foraging bees will go back to the same spot. Sometimes you can encourage the bees to make an orientation flight by placing a large branch in front of the hive entrance at the new location.
The first day quite a few bees were hanging out at the old location. Gradually that number has decreased as the stranded bees die or fly away.
The big question we still have is where the swarm came from. We live in a rural area and the most logical source of the swarm would be our other colonies. But those hives have remained strong all summer.
Another telltale sign is that queens in three of our four colonies are marked and we did not see a marked queen in the swarm.

Our fourth hive, which does not have a marked queen, has been making honey like crazy. They are working on their fifth super!
So the mysteries remain. We don’t mind so much, as long as the bees are happy.