So yesterday (and thank goodnes it wasn't quite so hot), I opened both nucs. Nuc #2 was calm and easy - no bees flying straight at me and when I put the jar of sugar syrup in the brood box, they were okay - again, no buzzing around. So I'll continue to feed them.
Now Nuc #1 - well, that's a different story completely. As soon as I opened the top, they were ticked off. The sugar syrup was gone so I just took the empty brood box off and opened the hive. I wanted to see what was happening, check for wax moths, etc. They are full of bees - I pulled out one frame and lots and lots of bees in there. I stopped with one frame simply because they were all at home since it was late in the day and they were a little irritated.
I put a super of honey on this nuc - it was old honey that I had put in the freezer (due to wax moths in a hive or something) and on Sunday I had taken them out to thaw. But this will give them some room and some food - not every frame was completely full of honey. I wanted to be sure they still have room to work.
They were busy, busy when I closed the hive. I hope this makes them calmer - maybe they just didn't have any room and that's why they were irritable. I sure hope so - I'm just trying to help those girls.
Beekeeping is sometimes a guessing game - I might do it right today and do it wrong tomorrow.