It looks like that bait is used more for pocket gophers and ground
squirrels. The squirrels I have are of the tree squirrel variety (I
think). They run a great deal along the tops of my fences. I'm
wondering how that stuff would work if I put up some sort of feeder
near the top of my fence???

I live in California too!

Myrl Jeffcoat
http://www.myrljeffcoat.com