A Northwest members has a hive installed from a package in early April that appears to be swarming. She added a second deep around May 22nd. The frames in the second deep were not all drawn out, but they were filled with a lot of honey. Bees left the hive, flew around for about half an hour and finally settled back on the hive, bearding outside, under the hive. She opened the hive and destroyed about six queen cells, which she wasn’t sure had queens that had emerged. She added a honey super, but many bees are still bearding outside the hive entrance. She asks if she should remove the feeder when adding a honey super and, “What is next?”
State Apiarist Tim Schuler notes that “Swarms can be fickle”. They can start, then return, then leave later. The hive could be queenless, and you were probably late getting a honey super on. Never destroy swarm queen cells, those typically found at the bottom of the frames between hive bodies, because if the bees have, in fact, swarmed with the original queen, you have now left the hive queenless. Hopefully, you missed a queen cell, or the queens had already emerged. Tim advises you wait a week or two to give a new queen time to mate and start laying and then check the hives for eggs. You stop feeding when you add honey supers as you don’t want the bees to store sugar syrup.
NB: A queen cell is capped on about day eight after the egg was laid. A swarm is typically pitched about when the queen cells are capped or shortly thereafter. The new queens emerge about 16 days after the eggs were laid. The surviving queen will go on her mating flights when she is between 6 and 13 days old, but mating occurs primarily on the 7th and 8th days according to Dr. Dewey M. Caron. He also states that within 2-1/2 days of mating, a queen can produce fertilized eggs, In a study of 56 queens, they were all laying within five days of mating. Based on when you see capped queen cells and the development and mating time frames, you will be able to better calculate when you should see eggs after a swarm or a supersedure.