Well, just in terms of visible results (not counting those who left no remains on our porch), it's:

Fox 3
Rabbits 0.

The posts here mostly confirm what we hoped, especially about the feral kittens. Not that I want them eaten. But there was one small adult tomcat, placed with us by friends, that disappeared awhile back. He had been quite a ferocious fighter. Now I think he simply sought a better territory, not that a fox got him.

~S~