They must know the number of hunters on the island. Set the appropriate bag limit to cull the herd to the desired size.
Only politicians would come up with some of these super expensive fixes……vs common sense low/no cost solutions. Totally out of touch
I was reading about a solution to the wild hog population in parts of the U.S. There is some compound, I can’t remember which one, in a pellet form which the pigs love to eat and which causes them to just go to sleep and not wake up. It’s supposedly harmless to other wildlife, so it’s very selective.
Of course, you still have the problem of rotting, bloated hog bodies lying around.