I was sitting out in the yard watching my newly hived swarm when all of a sudden I started to hear the buzz of a bigger bee. Before long it sounded like an air strike. I had a bunch of big bees flying down and going into my hive. I was able to catch one, and it looks like a honey bee only double the size. They were going in and out and I figured they were robbing the hive of honey. This really ticked me off cause I just got this swarm, and they cant have all that much to begin with. I put my entrance excluder back on to try and help them out a bit. My bees were going crazy flying all around the outside of the hive but I didnt see them really fighting other than landing on them every so often. I'm new to this so I dont know what a bee fight really looks like. I am trying to get batteries for my camera so I can post pics to get a positive I.D. Is there any other advice as to what I could do to help my girls out? Did I do the right thing by putting on the excluder? I may leave some drones out but I figured that would be better than letting these bumbles clean the girls out. Thanks in advance!