re: 8 birds of prey working together?

Once I was mowing the back couple acres and 3 or 4 Mississippi Kites landed at the top of 2 hackberry trees at the edge of the field. As I was mowing these green grasshopper looking things would fly up in front of the tractor and glide about 20 ft into the uncut grass. Then these Kites started swooping down and nailing them right in front of my tractor. This went on for about 45 min. It was a great mowing experience and the Kites must have been stuffed.