I am with Jack. Always wait until the bees have been pollen foraging for a week or two. Some swarms contain virgin queens and you want to make sure she has gotten mated and is laying before messing with the trap. If for some.reason the trap is not full of frames, you may want to shorten that to a week since the bees will build comb in all the wrong places .
jumping onto this thread with a "what if I did it too early" followup - A nice swarm moved into my trap a week ago and because it was an extra tall 5-frame nuc box they started building comb under the frames as well as on them.
I hived them fairly quickly, at the same location; didn't look for the queen very hard, and didn't see eggs (the comb was all quite new, obviously) but there have been lots of drones about for days.
When you R&R comb, always replace it in the same orientation as removed. In your video, it appears that you replaced it upside down. (Comb is built with a slight upward angle, and bees like it that way.)
I have a question that goes along with this topic (sorry I'm a beginner so I don't have anything helpful to add here). I previously (last year) caught bees in a swarm trap. I moved them to a hive soon after, but as you mentioned, they built comb in the wrong place and it got messed up during the move. They moved out of the hive almost immediately after, but I found the swarm in a nearby tree. I was told to put the queen excluder at the bottom of the hive next time so she was forced to stay. I did, put them back in the hive, and left the excluder there for several weeks. When I removed it 3 weeks after rehoming them, they all left again immediately. How long should that queen excluder be left in place after rehoming? Any thoughts on this would be appreciated. And thanks for advice in the post above - I ran into the same issue.
After three weeks, the queen should have been laying and there should have been brood in the comb. Something else is in play here. Maybe you had a virgin queen, or there is something about the box you put them in they did not like.
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