You ever see the YouTube channel with the guy who builds these insane squirrel obstacle courses in his backyard? I think it started as a way to stop them from eating his bird seed, and morphed into a cool pastime
Yes If you've never shot them with an airgun you're missing out on some of the best days of your life
If you have any tree near or branches hanging over your house. Cut the tree down. Remove all branches over the roof of your house. I had a squirrel Highway of branches and close trees to my house. Got rid of their access. No more problems.
I've seen good results with this. It dries them out from the inside, which makes them go look for water, and do doughnuts by your pool until they die.
May I suggest, I'm not much for hunting, but I draw the line when bats get in my attic, woodpeckers on my siding, squirrels come on my porch and eat my security camera wires, and coyotes eating cats. Can't really blame the coyotes. The dumb neighbor leaves food behind her house for them and cat food on her front porch. I can see 10 to 15 coyotes go by 25' from my porch all night(one went by while I was typing this). .22 caliber semi-auto pellet gun.