Feral Cats
Feral Cats coming from your neighbors next door. How near or far is next door?
There may be a problem, cats are a little hard to kill, firearms make considerable noise, and cats do roam, even the nicest ones. We gave up using a .22 rifle long ago, if you don't get a head shot you have wounded old tabby and he/she will go home and tell on you. We have trapped some in a live trap baited with canned sardines and then quietly dispatched them, dispatched one with a Winchester Mod. 92 in .45 long colt that dropped on the spot, another with a 220 gr. bullet from a 30-40 Krag. That one exited but did not survive.
On the other side of the cat problem, many folks are cat lovers as are their small children and they grieve over the loss of their pets and will likely replace them thus a never ending cycle. I love good neighbors, their children and usually their pets so if Mr. Tom or Mrs. Puss don't do too much tearing of garbage sacks and the like, I do try to overlook a lot. "Feral People" are a lot more bothersome but my upbringing tends to make me ignore them if possible, I stay away from them.