Hi Jack, I would be more inclined to move the donor hive one foot at a time each day rather than lock them up. As @Dawn_SD said, they are bearding for a reason. The smoke will drive them in, but if you drive them in, move the hive 5 feet & then open it up straightaway, the field bees plus all the bees that have done their orientation flights will go back to the old site the next morning & possibly get accepted by the other hives, if they are next to where the donor hive originally sat. That will leave the donor hive low on numbers. A five foot move is fine if that is the only hive in the yard. That is why it's best to move it one foot at a time each day, preferably in reverse.