Electric fencing is your best bet long term, but for today you can try hot chili peppers. Raccoons were using a corner of my veggie garden as a latrine several years ago and I got a Costco sized container of the crushed red pepper and sprinkled it liberally near the hole in the fence they were coming through. They never came back, however there was nothing really tempting in there like chickens either. It will not bother birds in the least but mammals sniff everything. It’s worth a shot.