"Anchorage doesn't have many large animals that hunt cats".  Seriously?  Gimme a break.  What about the 10s of thousands of dogs in Anchorage that irresponsible owners let run loose?  There is no a feral cat problem in Anchorage because 9 out of 10 dog owners in Anchorage are clueless and have no control over their dog.  Go to the front range of the Chugach (Flattop, Peak 2, 3, Wolverine, Baldy, Arctic Valley).  It's a dead zone these days.  Ground squirrels, rabbits and ptarmigan are gone.  All killed by loose dogs.  And when the dogs get back to suburbia, they kill cats and smaller dogs instead.  Maybe look at the big picture before spouting statistics that make no sense.