Thanks. The Red Squirrels are very much loners and extremely territorial once they leave the nest, and over the course of the next two months we'll see one eventually assert dominance and drive the others off to find their own territory. It gets loud, aggressive, and can often be hysterical to watch as they stand just feet from each other screaming at one another. We had one when we first moved in for a year or two, but then nothing for about a decade. They've been back in full force for 6 or 7 years now. They are very unafraid, and will get within 5 feet or so of us when we're out filling the feeders, making sure that they're the first one on.