I am pretty new at this. I haven had time to look into my hives in a couple of weeks. But I noticed this morning in one hive, bees were busy coming and going as usual. But they were also pulling out, white (almost fully developed) larva out of the front of the hive. Looks like maybe twenty or thirty larva on the ground. There has been a lot of robbing with this hive the past couple of weeks. Could that have something to do with it?