Black Squirrel Eating Seeds in the Snow (Dry Brush Filter)

The squirrels have found a rather clever way to get to the seed in my bird feeder. I suspect that they are trying to get the top off (which they haven't so far), but when they jump down onto the feeder, while their weight closes the doors, they manager to swing the feeder enough to launch some of the seed out onto the ground. That, and the nuthatches help the squirrels out by going through and tossing three seeds for every one they keep (roughly). Hmmm...