What an idiot this Mark Smith is.
People like Smith give hunters a bad name. I don't condone the threats against him but that's what happens when you go popping off at the mouth.
Why do you think this?
Feral cats are at best a non native invasive species, at worst vermin.
Wisconsin already has a number of wild animals (lynx, bobcat, coyote, fox, weasel, raptors, snakes) which serve as a control to the wild rodent population.
The feral cats are unnecessary and should be removed.
Shoot, shovel, shut up !