Other Predators

I was outside last somer and noticed a hornet buzzing around my horse. I was concerned it was gong to sting him but I also didn't want it to sting me so I backed away and watched it. It was hoering back and forth and then dove down and grabbed a fly. It then flew off. I was surrprised by that and since then I'm going to leave hornets alone to kill the flies. Yellow Jackets are another wasp that will hunt flies like this.