Canuck
Well-Known Member
After the first couple of collisions I added deer whistles. The next collision a few months later knocked them both off. I never bothered to replace them.
They're a waste of time and money:
The Insurance Institute for Highway Safety presented evidence refuting claims promoting the whistles:
Georgia's Game and Fish Department, for example, found that in hundreds of observations from vehicles equipped with deer whistles, deer didn't respond. Whistles on vehicles going 25-30 mph produced no ultrasonic sound, although some ultrasonic and lower frequencies were produced when the whistles were blown by mouth. According to wildlife biologists at the University of Georgia, neither deer nor humans can hear ultrasonic sound. Whistles blown by mouth near captive deer produce no response.