It is hornets. Whatever you do don't disturb them without a way, a sure-fire way, to kill them before they kill you. Whatever you decide to do the best time to do it is at the coolest time of the day/night. Hornets are the bee version of water moccasin/cottonmouth snakes. They are meaner than a Jersey bull and even more dangerous. Did I mention that hornets will go out of their way just to get half a chance to sting you. And their stings HURT.