Starting out beekeeper. Ordered 3 nucs to get going. One was a standard nuc box but the other 2 starter colonies came in a kind of 'semi-detached' setup, a regular deep divided in half with two entrances. What do I know. I picked them up and took them home. Then it rained for 3 days straight. So I took the semi-detached box to the yard and opened the entrances (small auger holes), and waited for a fine day to hive them up.
The single nuc box was easy, move over the frames to the new hive box, then shake out the stragglers. Then I see this isn't going to be so easy with the semi-box. So I decided to hive one side first, then do the second a day later, at that point I could shake out the remaining bees.
So for colony#1 out of the semi-box, I transferred the frames over - looked good, lots of bees, and I saw the queen go in safely on frame 3. There were stragglers in the now vacated side of the nuc box but I figured they would follow the rest to the new hive box, set up about 4 feet away on one side. Knowing the queen was in there, I assumed they would sort themselves out.
So next day I go back to transfer the other lot over (colony #2 in the semi). Right away I noticed that there was a lot of activity in front of this remaining nuc colony, and apparently not much in front of the one I'd hived the day before. Anyway, I proceeded to transfer the second lot. I checked on colony #1, and the four frames had a decent number of bees on them, although the colony seemed quiet.
Yesterday (after a couple more days) I went back to have another look, and again was struck by a lot of bees active in front of colony #2, and not much happening at colony #1. Thinking about it, I think that perhaps the foragers from #1 that were out when I did the first transfer came back, found no frames left in their side of the semi box, and decided to join the other side of the box, instead of going over to their new hive. if this is correct then colony 1 may have suffered a hit on its forager force which may put it in trouble, while colony 2 is the presumably preparing to go into orbit. There is lots of food available from many acres of wild raspberries and the sumac has just come out, in addition to field wildflowers.
Recommendations? Should I do anything and if so, what? I am not sure how I can persuade the drifters, if that is what has happened, to go back to their original colony.