We've gotten a bunch of new male squirrels. Ones we had never seen before. This has happened twice now. It has led us to suspect that the males migrate a couple of times a year while the females maintain a territory that they defend from other females.
The times we have seen Preggers get really aggressive are when she's been hormonal (nursing, pregnant)or when another female has come around. We've only seen three other females. Peach came around for a couple of weeks and then we haven't seen her again. There was the female that was being chased during mating season, and lastly, a very young, small female came to the porch one day, never to be seen again.
By the way, we've changed Norman the Doorman's name to Fatty. He's gained so much weight, he can barely run away from the other squirrels that chase him.
