If you have a strong colony that made it through the winter, splitting in the spring is a possibility! You want to split during the time of year that colonies are naturally looking to swarm. The biology is that by taking the old queen and moving her to a new hive gives the hive the feeling that they swarmed. The old colony can then raise a queen (as long as you leave eggs) or you can introduce a queen. We will often put a 3rd deep box on a colony about a month before we are ready to split them so they don’t run out of room and swarm on their own, and to give us lots of bees to work with!