Exterminators cost money. TNR runs on volunteers and a lot of donated services. (Nobody volunteers to kill cats, and if they do, you don’t want them.) And the

Exterminators cost money. TNR runs on volunteers and a lot of donated services. (Nobody volunteers to kill cats, and if they do, you don’t want them.) And the overall effort isn’t that different. With TNR you trap, neuter, release. With extermination you trap, kill, dispose. (I don’t think you can leave a bunch of dead cats and poison traps laying around). Neutering is a lot more effort than killing, but disposing is more effort than releasing (you can’t just throw piles and piles of dead cats in a dumpster).