Wow, is that a hawk just above them in the pic? Fascinating!
My turkeys like to torment the barn cat and wild rabbits like that too... they all gang up on them together and run after them and the poor critter doesn't know what to do.
And once my 4 crazy guineas followed a skunk around the farm for about 30 minutes, making little charges at it, then running away, then circling back. They followed it everywhere! I was laughing my head off.