Do You Whistle

Discussion in 'Touring Models' started by ReefRider, Sep 11, 2010.

  1. ReefRider

    ReefRider Member

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    I'm getting ready to head to the Smoky Mountains for a week of riding. I live in Florida. Down here we don't have a lot of deer, tourists and grayhairs but not many deer. A couple of guys said I needed to install a couple of deer whistles on the bike to keep them away from the road. I thought my loud pipes would do that. Do they work? How many of you that live in the highly populated deer areas have these on your bikes.? Where did you mount them? Seems like a waste of money.
     
    Last edited: Sep 11, 2010
  2. tahir

    tahir Banned

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    Hi Reefrider, as i read
    The hearing range of white-tailed deer, the most common species in the United States, is between 2 kHz and 6 kHz, so the animal is not capable of hearing the 12 kHz signal of deer whistles also your loud pipes sounds is low frequency i think the best way is being slower

    Original source

    Deer-Whistles Ineffective,
    Says Bioacoustics Researcher
    By Janice Palmer

    Slow down! Deer crossing. It's a warning to be heeded this time of year. Deer are on the move during late fall and early winter, either because it's hunting season or because they are seeking a mate.

    On the highways and byways across North America, nearly 750,000 collisions occur each year between deer and vehicles. Efforts to reduce that number have spun off a multi-million-dollar industry: deer whistles.
    Image: Peter Scheifele
    Peter Scheifele, director of bioacoustics research at the National Undersea Research Center, conducted a scientific study of deer whistles.

    Photo by Shannon McAvoy

    Scheifele, an animal bioacoustics and audiology expert, wanted to know more about the devices, so he and his research team scientifically tested their effectiveness.

    The small plastic whistles, easily attached to car bumpers, hit the marketplace several years ago. Some are sold for as little as five dollars. They vary in design, but their claims are relatively the same. Their manufacturers promote them as "acoustic attention-getters", alleging deer would react to the whistle by remaining still.

    "There has been a lot of conjecture about whether the whistles work or don't work, and we are one of the first independent groups to scientifically test them," says Scheifele, director of bioacoustic research at the National Undersea Research Center at Avery Point and a researcher in the Department of Animal Science.

    He and his team tested six air-fed whistles in the laboratory and in the field. The study's goal was to determine the actual frequencies generated by the whistles and the intensity at which they are produced, compare that data to the hearing abilities of deer, and then take the animal's acoustic behavior into consideration.

    Following the directions on each package, the team mounted the devices onto a car's front bumper. Using a road closed to the public, they drove the car at speeds ranging from 30 to 45 miles per hour while recording sound and data.

    "We tested them strictly from an acoustical point of view," explains Scheifele. He found that the whistles typically produce a signal either at a frequency of 3 kilohertz (kHz) or 12 kHz. Both, as it turns out, are problematic.

    The hearing range of white-tailed deer, the most common species in the United States, is between 2 kHz and 6 kHz, so the animal is not capable of hearing the 12 kHz signal.

    Although deer may be able to hear the 3 kHz signal, it is only 3 decibels louder than the road noise created by the car, so the signal is buried. Scheifele points out that the situation would be worse with additional traffic in the area or if the wind was blowing.

    Since completing the study, a new electronic whistle has been put on the market. Although Scheifele has not had an opportunity to test it, he has examined its advertising claims. He says the specs for the electronic whistle are considerably different from those of the air-fed devices, so "there is a possibility that the electronic whistle is more effective than the air-fed devices."

    But even if deer can hear the electronic signal, the UConn scientist questions how one alerts rather than startles the animal. This is where animal behavior comes into play.

    "Think about the metaphor 'deer in the headlights'," says Scheifele. "It is used to conjure up an image of someone who is confused or frightened. When deer sense something unusual, we do not know for sure how they are going to react."

    Will they freeze in their tracks, run off, or charge towards the sound? Their behavior is related to the "fight-or-flight response". According to scientific literature on the subject, there is an amount of space in which an animal feels safe, but once that boundary is violated, the animal's reaction is unpredictable. Its response will depend on a number of factors, including age, sex, type of enemy, and surroundings.

    "All in all, the air-fed whistles do not make sense to me acoustically, " states Scheifele.

    He has written a paper on his findings and submitted it to the Acoustical Society of America's Acoustics Research Letters Online where it will shortly be
     
  3. ReefRider

    ReefRider Member

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    That's what I was thinking and being from Wisconsin you should know about deer.........
     
  4. dbmg

    dbmg Experienced Member

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    Living in Pittsburgh Pa we have a lot of roaming deer around here. In the 25 years of riding I have seen deer and only 1 crossed road in front of me. With my last 2 bikes and having replaced the mufflers all the deer that were near the road would run back into woods.The mufflers helped scare off a Black Bear once. I agree with smitty901 deer whistles are a waste of money.
     
  5. Crocker

    Crocker Active Member

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    Good lighting that reaches out and projects wide will give you a leg up on spoting deer roadside ,there eyes reflect and you will be able to pick up on that if you pay attention, dusk,dawn,and night is when most deer are on the move , also this time of year the hunters are getting ready for the hunting season ,So they are in the woods now setting up there hunting locations along with the mating season comming soon more Deer movement is going on from sept - Dec. If you see one cross in front of you dont take that for granted ,this time of year if you see one there is more likly rite behind them.also being I live in a heavy deer area I have noticed that very few deer turn back from the path they came from they almost always continue across the road. Just keep in mind they are out there and enjoy your trip and dont let them stress you out
     
  6. sprinklerfitter669

    sprinklerfitter669 Junior Member

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    Deer are like any other animal...When they get in to the "rut" or mating season, the Buck or male deer has only one thing on his mind. this is why you see they laying on the side of the roard in late fall....
    So if mating season, and the buck is determined to cross the road....he doesnt care how loud your pipes are
     
  7. billyd1

    billyd1 Active Member

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    Thanks. That confirms it once and for all for me-gimmick!
     
  8. ReefRider

    ReefRider Member

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    I upgraded to the Osram H4 bulb and it really makes a difference .
     
  9. olskool

    olskool Member

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    i own a collision shop...if i had a nickle for every deer whistle mixed in with the other deer damage...i would be rich!! lol

    when i ride here in lower MI (tons of deer)...i just ride, and scan the side of the road...
     
  10. Dr. Dolittle

    Dr. Dolittle Experienced Member Staff Member Moderator Contributor

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    Mostly repeating what others have said. The main thing is to slow down in wooded, deer friendly areas. Never assume it's clear around that next curve. If you see one, surely more will follow.

    Oh, and practice your "ducking" skills:

    YouTube - Deer jumps over biker