Fred in Alabama
US Veteran
We had lots of feral cats at an old house. I got a cheap pellet gun, low power, and popped them with a pellet when I saw them on the property. I used pellets as BB's would penetrate and the pellet would only sting real bad. After a few weeks it was funny to watch them come across the neighbors yard, stop and walk right along my property line to go around my property. They learned quickly where the boundry was and I didn't have much problem after that.