I was working on our new coup and heard a peep peep peep about ten feet away. I looked over to see one of my hens pecking the snot out of a sparrow. It tried to get away but she just kept at it. I left her to her prize and to play keep away with the rest of the flock. Strangest thing I've seen yet with these chickens! Anyone else every witness something like that? Earlier in the day I saw them playing keep away with a small frog. That didn't surprise me so much, but this sure did!