Queen cell--maybe

I spotted what looks to be a queen cell in hive #1 today, so possibly they are making a queen after all.  One cell was on the middle of a frame, with the opening pointing down and a larva in it, attended by a couple bees. I did put a frame with young larva in from hive #2 and will try to do so once a week for a couple weeks.  There were a lot of capped cells and young larva in #1, so the queen must be alive and well.  Since there would still be some larva after one week, there should not be any next week if the queen is absent.
I also checked on the nuc.  No sign of a queen cell there though there is still some uncapped larva.  I'll wait and see on that.

Little 4 frame nuc