The Found Cats,react,like that,as they know,that there are unaltered Catscoming,on the Porch.Although,they never have become Dirty Cats,and they only fight,when they get,too close.Except,for Pouncette.who growls at everyone,and eats,like a wolverine.good Luck,with Your Cats.Cats can be depressed,keep an eye ,on them,and make sure that they are eating!