It’s true that they are not indigenous predators, but the indigenous predators are gone from the scene. When’s the last time you spotted a mink?
We have fisher cats and coyotes in our yard. We also have feral cats, but they disappear from time to time.
Saturday.
Late last winter on my early morning run in rural western Champaign County, Illinois. Wasn't a very good predator anymore since he was road kill. Out in the middle of farm country, not much in the way of water for 3-4 miles any direction.