You can often tell a lot just by looking at the outside of the hive.I had started two nucs last week by splitting a package and buying an extra queen. I released the queens on monday. On tuesday, I noticed some bees clustered on the front of one nuc box. It was near 90 degrees, but this didn’t look like normal bearding. It was one of those cases where something just didn’t look right. There weren’t a whole lot of bees but they seemed to be concentrated in the corner close to the cover, and some bees were clinging to each other the way they do in a swarm. I grabbed my veil and some white paper, carefuly lifted the cover and used the paper to “cut” the bees off and on top of the frames. Then I looked on the front of the hive, spotted the queen and used the pc of paper to herd the bees up the side of the box and watched the queen go down between the frames. I hope she knows now that she is supposed to thin Inside the box.