Yeah, thanks. We're not sure what the problem is. It seems like fleas, she likes taking a good bite out of her legs, like she's trying to get at something, but even the vet couldn't find any creatures lurking in her fur. She got a good dose of pesticide just in case. Maybe she just likes biting herself, even as cats go, she's pretty dim and she genuinely does seem to like having a good fur-bite. I worked her over with the furminator last night – this traditionally doesn't yield much from Bad Cat (LMC, on the other hand, you could stuff a sofa with the all the fuzz that comes off her), but there was plenty of loose fur. Maybe she's just too fuzzy for the weather.
She doesn't seem evidently stressed. I don't think the magpies are that bad and they've been around for years.
I'm, of course, worried that it might be Morgellons.