Here on the "town" place, feral cats and skunks want to set up housekeeping under our home.
The feral cats beat the daylights out of our old, neutered, cat - so they go.
I use live traps, baited with mackerel - the "unwanted's" take a 1 way ride to the ranch.
#6 shot just works!
Early on, I caught the resident cat ( a VERY smart critter) -shook the livin' HELL out of that trap - and have never caught her again.
"The Warden" and half the folks that live here would have never forgiven me, if they even dreamed I'd shot her.
Since "The Warden" feeds me warm meals, and lets me sleep indoors - I TRY to keep her more-or-less happy.