They kill a lot of other things as well. They’re apparently as ecologically destructive in Australia and New Zealand as feral hogs are in the southeastern United States.
Capture them and spay and neuter them.
What other animals? I can’t imagine a feral cat killing a cow or pig.
Also I am for killing feral hogs, puts more bacon an the market.
Skinner: Well, I was wrong. The lizards are a godsend.
Lisa: But isn't that a bit short-sighted? What happens when we're overrun by lizards?
Skinner: No problem. We simply release wave after wave of Chinese needle snakes. They'll wipe out the lizards.
Lisa: But aren't the snakes even worse?
Skinner: Yes, but we're prepared for that. We've lined up a fabulous type of gorilla that thrives on snake meat.
Lisa: But then we're stuck with gorillas!
Skinner: No, that's the beautiful part. When wintertime rolls around, the gorillas simply freeze to death.