Well....I'm by no means drawing any definitive conclusions from one little test but it is what it is.......the coyotes have completely disappeared for some reason. I haven't heard them, got pics of them, and Otis has stopped barking at them at night. It may just be coincidence or something else that triggered the change....I'm not sure.....but I think its well worth continuing to test this idea out and see what happens. I feel pretty sure that it wasn't simply my presence and scent that did it because I had been taking the dogs by there every day and letting them sniff around. There's still pears dropping like crazy too.....To be continued