Check out the documentary "Running Wild". Cats are part of the problem, including camels, foxes, horses and other invasive species. They went through a lot of

Check out the documentary "Running Wild". Cats are part of the problem, including camels, foxes, horses and other invasive species. They went through a lot of trouble to hunt down cats and contain them. Cats wreck native animal populations. They went so far as to fence off areas and train labrador dogs so that they don't hunt native predators such as the (tiny) marsupial "badgers".