Since we have a new patio door that allows easy access to our back yard, we now have bird feeders outside the family room windows. The battle with Oscar began the same day I put out the bird feeders. Oscar is a big fat, sassy squirrel. He enjoys tormenting Kitten and me. Kitten sits in the window, tail twitching and making strangled, tormented sounds. Occasionally Oscar comes and gets on the outside sill, further tormenting poor Kitten.
Oscar quickly figured out how to lift the top off the feeder on the post. I figured out how to secure it, but he continued to empty the feeder on a daily basis. I bought a new feeder that has a cage around the tube to keep squirrels out. The top is notched so you can turn it and secure it on the hanger. It took a couple of days, but Oscar figured out how to open the new feeder, too.
I'm sure there will be many more rounds in this war. It's a nice diversion. The birds are just beginning to discover the feeder, so hopefully I will soon be able to focus on them rather than Oscar....