I think the plastic owl, radio or motion sensing sprinkler and probably the least intrusive options, or even a motion sensor and a recording of cat or other predator sounds would no really alter anything. Bribing a stray cat with just enough food to keep them coming round is a good idea too.
CowchipALGardener wrote:1. Trap or kill them. (If you use the lethality method I can assure you that your corn fed squirrels will be tasty!)
I wish I had another squirrel problem - sort of sauteed with onions, carrots and potatoes!
RWS makes a number of very good options where a standard .22 lr isn't going to be so accepted. Go with the .22 option and the slightly lower feet/sec. My .17 with the gold plated ammo cracks like a .22 lr (pellet go supersonic coming out of the muzzle). The .22's have a slightly slower muzzle velocity (no super sonic crack), have more momentum (hitting punch) and a slightly deminished range.
I have the previous version of this: https://www.topairgun.com/22-rws-diana-3 ... ifle-combo
Which is just as accurate as a good .22 lr inside its range. (Good for raccoons in the attic too.)
Radio still seems like the easiest, least intrusive method though.