I don't know about coyotes, but my Wife is a fox, and it worked on her. Try Stetson or aqua velva. My buddy's wife is a dog, and it worked on her. Crap, I think your on to something, and all this time I have been hunting in a mixture of shunk spray, fox and rabitt pee, and oil from the gland of a mink. Come to think of it it kind of smells like Stetson cologne.