I asked our bee inspector Ken Warchol to come visit my hives to help me get rid of Pink because I was planning on combining Pink and Sun's hives for the winter. I am SO glad I asked him to come over.
He said that Pink's have was the stronger of the two hives and that he thought all three hives were good and strong! Yay! And being the great teacher that he is, he explained to me how to tell - essentially if on a cool day the bees are still in the top box across all the frames, there are plenty of bees.
On the other hand, and isn't there always one, all three hives need more honey. I am trying to feed them honey but it might be too chilly for then to take a bunch of honey. With the extra cold weather these days I am going to offer them sugar water as well and then treat them in the spring for the intestinal parasites bees get.
On his way out, Ken had one of Pink's girls on his hat. She'd gotten a bit chilly, so I took her home.