We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
Anyways lived with these guys…affectionally known as tree rats. The backyard battle keeping them out of the bird feeder is a losers game. For years we fed the blue jays peanuts and the squirrels loved it—they liked to bury them and we ended up with peanut plants sprouting all over the yard. They use the 6 ft backyard cedar picket fences as their neighborhood interstate. My chocolate lab likes to stalk them and is the eternal optimist that he will someday catch one.
Get a Forestry Supplies lethal tube trap. Bait it with peanut butter and you will make a serious dent in your problem. I got 28 last summer, and this year have no squirrel problem because most of my kills were likey male.