Go to the hunting dept at some place like Wal Mart get some red fox pee, that will keep them away.
Will it keep me away too?? :-)
BTW, about 15 years ago, we had a red fox and her kits living under my neighbors shed. No squirrels, bunnies, or other varmints around that year. Couldn’t figure out where all the squirrels were going till the neighbor saw the mother fox taking a fresh killed one back under the shed.