Do deer alert whistles really work?

Answer

Short answer is NO. If you can find an insurance company to give you
a discount that would cover the cost...go for it...otherwise check
this evidence:

I think the most telling thing about this topic is that AAA does not
even mention them as a way of controlling animal/car collisions:
http://www.aaafoundation.org/resources/index.cfm?button=autodeer

Crashes With Animals

Collisions with animals, particularly deer, represent more than four
percent of all crashes in the United States and killed 111 people in
1995 according to data from the National Highway Traffic Safety
Administration's Fatal Accident Reporting System (FARS), so the
Foundation decided to look into this issue further. An analysis of
state data from Alabama showed that the most dangerous times of day
for deer-related crashes are in the early evening and early morning --
the most active time for deer. The most dangerous time of year is
during the mating season, in November and December. While FARS
reported 275,000 collisions with animals in 1995, the Insurance
Information Institute , a New York based group that looks into various
insurance-related issues, estimates that there are 500,000 collisions
each year with deer alone, each costing the insurance industry
approximately $2,000 per claim. According to the I.I.I., the deer
population has swelled from approximately 10 million in the 1980s to
more than 20 million today.

So, what can you do to avoid hitting an animal yourself? First, pay
attention to animal crossing signs. They're probably there because
other motorists have had crashes in the area. Also, obey the speed
limit and keep a close watch for deer around dusk and at dawn. Don't
over-drive your headlights at night -- i.e., control your speed so
that you will have time to react to something when it appears in your
headlights. If you see a deer in the road, honk your horn -- flashing
your lights might cause the animal to further fixate on your vehicle.
Keep in mind that if you think you are going to hit the animal, it's
often better to brake than to swerve. Swerving can confuse the animal
as to which way to run and possibly result in a worse collision with a
fixed object such as a tree or an oncoming vehicle.

First answer by Clay. Last edit by Clay. Contributor trust: 3703 [recommend contributor]. Question popularity: 24 [recommend question]