My main problem had always been hawks killing my chickens and shooting those is a big no no. I locked the girls up in their coop at night, but hawks would get them when they roamed around the yard during the day. The all white leghorns seemed to be the most susceptible, not so much with barred rocks or rhode island reds. I have had the occasional raccoon show interest, but I'm allowed to shoot those. I've never seen any kind of cats after them and I believe the only ones that we have in PA. are a type of lynx.