Our local large beekeeper has a nuc every spring that he puts a frame full of queen cages in that he buys. The workers care for all these queens until he needs them. What motivates the workers to feed and care for all these different queens? Why don’t they cluster with one queen and ignore all the others? When I bought one of his queens, I got a look in the nuc and it looks like a normal hive with workers crawling around no with clustering.