outside my window, in the big Walnut tree, a squirrel is having a cussing match with a big crested Blue Jay. I know this has to do with the feeder full of sunflower seeds just below them. The squirrel seems to do most of the talking but the Jay keeps hopping down to the feeder and then back up on the branch about 2 feet from the squirrel.
Between the two, I think I would rather have the squirrels raiding the feeder. Jays are obnoxious and run off the other birds, whereas the squirrel will set on the feeder with little birds right next to him.