It sure looked like a fox to me!
So I grabbed the DSLR and headed for the bathroom window where I could quickly and easily remove the screen. I took a bunch of shots, and then I opened the window carefully for even better shots. Yep, definitely a fox!
A very tired fox. I shouted at it to see if I could get a photo of it in motion.
It barely moved... only lifted its head. It seemed to have a swollen face.
I think it may have had a very bad toothache.
Finally I cranked the window shut, which made some noise, and it got up and slowly trotted away.
It definitely looked ill. It may have been starving to death from not being able to eat because of its soreness.