Anyone notice that in the first picture he is on the left side of the feeder and on the rest of the pics show him on the right side?
I've had bird feeders for years and have tried every method I can think of to keep the squirrels off short of having a live exposed electric cord tied to it to zapp them. I once used my pellet gun and shot 6 of them and the next week a new group came over from another neighborhood to eat at the feeder. I took one of those old round discs that kids slide on in snow country and put it over the feeder and they still figured out how to get around it; I even painted it with axel grease so they would slide down so they just ate the rope and dropped the whole damn thing in my flower beds. Then I got smart and got rid of the feeder!