I recently ran into some problems with preditors. No damage to my fence, but I did leave my gable vents unprotected 12' up in the air. I figure it took , what ever it was, a week to find a way in. Im really stumped. I figured i would see some form or climbing marks or fur or something.... nothing. I built everything pretty well except for the overlooked gable vents. l hope this is it. I really didnt want to trap and kill, but after 17 birds enough is enough. I figured I would try some coyote urine. Has anyone tried this? Does it seem to work? Can it cause more problems? I just figured I would ask. Im in the seacoast area of NH if that helps.