It warmed up again so I went into the hives yesterday to mixed reviews. Hive #2 again was doing very well, three boxes full of brood, larva and eggs! This one is looking good.
Hives #1 and #4 did not look as good. Hive #1 seems to have decreased in size. All of the bees were in the bottom box on only about four frames. I did see the queen and there was brood and larva, but I don't understand the size. I did not see any swarm cells and it really seems to have been too cool to swarm anyway, but I am not sure what is going on with it.
Hive #4 was still only in one box (and a medium at that) , I don't understand why this one does not build up. I probably should have replaced the queen (I did see her) - but not sure what the trip point is.
We'll check again next weekend ...