This morning while checking on my bees I noticed a behavior I had not noticed before in hives before. It is a well know behavior that I had read about before. Wash boarding is a rhythmic movement. The bees in front of the hive, usually above the entrance, step forward and backward, swinging their front legs in what looks like a sweeping movement. Could it be a harvest dance? Could it be a cleaning action? The reason for the behaviour is still unexplained but you still have to wonder why they are using so much energy on what seems a futile behavior. I did not take a picture but added a link so you could see the wonderful behavior.