Went looking at the hive today and noticed some dead bees outside the hive, also half dead carcasses and some woozy looking bees. Looked like the bees couldn't fly. They are lighter in color and quite a bit bigger than my honeybees but otherwise look similar. Could these be robbers and the bees are taking care of them? Hive looks normal to me other than that, everyone's working hard, doesn't seem agitated.