We now have at least 4 different squirrels visiting us on a regular basis. I know this because I’ve seen all 4 in the garden at once. We put up a squirrel bungee with a corn cob on the end, and often one aboreal rodent will chow at the feed box while another gets some exercise. They occasionally chase each other, but they don’t seem to be too territorial yet; maybe later in the year?