Well, I purchased a Ruger pellet rifle with a scope, sat out at the pool, and dispatched 14 squirrels on day #1. I did the same to another 22 over the next two weeks, all in my yard. The smart ones stayed street side. I went out front and ended their little tree rat lives, but was seen by a local cop driving by. He came around the block and chirped his siren and told me to stay in my back yard with that thing!
I had hired pest control guys, put out pans of vinegar, cayenne pepper sprayed in the attic, have a heart traps, cinnamon, and even forced my cat to spend her nights in the attic. None of that worked. I had to resort to deadly force.
My wife reminded me of how bad of an outcome being in the front yard with a black rifle and scope could be in Memphis. So did the cop.
Has the cat gotten revenge on you yet?
Also Portland cement mixed with peanut butter. Make balls out of it. Put in a dish outside that is covered from rain. Maybe put some other birdseed etc in it to get the squirrels interested.
I cannot testify 100% on it but...... Just think of ways to lure them into eating the cement balls. Maybe peanuts in the shell?
Put some moth balls in a bunch of socks, and tie off the ends. Toss them around the attic. Squirrels won’t go there any more. I got that idea from the Internet; but, it actually works. (Hint, use the socks left behind, after your drier eats their mates.)
I've been pondering how to disguise an airgun as something less likely to bring the SWAT Team a-running. Maybe one of those big neon plastic super-soaker things with an old Crosman 180 CO2 rig (or new Chinese QB clone) hidden inside.
These damned fox squirrels in north Texas are the size of small housecats and are very destructive. I need something to pop them in either the front yard or within view of the nervous-Nellie neighbors.
BTW, check out a product called "Just One Bite". Use that and most of your problem will end up floating in a neighbor's swimming pool.