Preston when the bees leave the end of the cone they are going to forage, that is what is on their minds, not going into another hive. When they return they will fly back to the opening in the structure, not the end of the cone or the bait hive. After a while of looking to get inside of the original hive they will "smell" the bait hive and finally wonder into it. There is an instinct to cover the brood to keep it warm and upon noticing that they are queenless they will start to draw out a queen cell from a hatched egg. Some of the foragers will revert back to nurse bees to care for the brood.