Yeah ,you can buy those here in Canada , they don't work .

As livestock farmer ,I am used to animal body language and can predict ,to a certain extent, what an animal is likely to do . If you watch their ears and eyes you will have an inkling with regards to whether they are going to bolt in your direction or continue grazing .However a doe may be grazing out of sight in a road ditch and bambi will be grazing close by and lose sight of his mum , then he'll panic and run to where he last saw her or to where she is now with no regard for anything that may be in the way .
Deer will see you coming and then dash out into the road in an attempt to get across before you arrive , it does not occur to them to wait until you have passed .
So, in a sense ,they are quite predictable ,but like people they do the stupidest things at times !

And the nastiest animals of them all, People. I have upon many occasion, had people walk out in front of me, particurly on busy high streets, give them a beep of the horn to warn them of your presence, (as in accordance with the highway code) and then they hurl abuse. also if a pedestrian crosses the road on a green light, we should be allowed, no - encouraged to mow them down. And then the cars, people must assume that in cars they have right of way, particaly on roundabouts, i noticed this the day i passed my DAS, beliveing that maybe it was because they did not see me - i almost always wear a high vis jacket over my gear now, did it help? Did it ****. Dont get me wrong i am not having a go at all drivers, many are considerate, and to be doing that i would be shunning myself, but to blatantly cause a bike to react, they are the ****'s that i am talking about. As for a Gadget to stop this.. I havent a clue. but boy o' boy did i need that Rant.. Cheers all. W

I live in an area with a healthy population of deer and used to see them early in the morning on the way to a previous job. I've got some deer whistles on the front of the bike, I picked them up for $8 in the States. Do they work? who knows but at the very least they're a talking point when I stop.

An experiment was carried out a few years ago where the roads around here were lined with reflective posts which caught the headlights and then projected, at 90 degrees, two "wolf eyes" into the woods. It seems they were very effective. So effective that the deer waited until the "wolfs eyes" disapeared before crossing the road. Just in time for morning rush hour!!

Eyes in the night keep deer off the road - 24 December 1994 - New Scientist

Shooing roos (or anything else)
 

I just can't see roos diving for cover when (and if) they hear an approaching high pitched whistle. How many seconds warning do they get anyway? Those whistly things are cheap crap, entirely untested. Have you ever tried a dog whistle? Dogs pay absolutely no attention. I believe roos stare at the lights as you approach, and then they suddenly become aware of their own shadow moving, become alarmed and leap away into your path. For those readers who don't know, hitting a roo on a bike would be a very serious accident indeed. I imagine hitting a deer would be worse.

A friend at work was driving home at dusk when he hit a "big red" with his car. This is a very big animal and it smashed his front end, buckling the bonnet (hood) over the smashed windshield so he couldn't see, and jammed the steering with the dislodged front bumper. The animal then bounced off his car into the path of an oncoming truck. It smashed through the windshield injuring the drivers' chest with it's dying kicking and filling his eyes with glass. He eventually had one eye removed (the driver, that is) and was hospitalised for 6 weeks. The car was a write-off, they were both lucky to survive.

I avoid dawn and dusk riding - too scary.

ShuRoo ineffective
 

Hi, if you're interested in science, have a look at the following link regarding a scientific test that found ShuRoo does not work:
http://www.bees.unsw.edu.au/school/r...huroofinal.pdf
Cheers, Tam

Deer warning devices
 

Hello all. The insurance corp of British Columbia did some objective and pretty sound scientific research on these warning devices and found that there was no evidence to support any of the claims made by the manufacturers of each device. Canadian riders know.......dusk and dawn. Animals are moving. Pay attention....and loud pipes makes them very unpredictable.....quiet is good.....safe riding.

After seeing quite a few deer alongside the roadway…some were even alive, I bought and installed a deer whistle on my bike.:scooter:

I had it on for a year but it didn’t seem to be working. :nono:

Upon examining it, a friend grunted as he explained the problem:

Apparently, I’d installed a DEER CALL, not a DEER WHISTLE. doh

So in fact, far from repelling them, I was actually attracting deer wishing to mate with my bike. (Which would explain the looks the deer had been giving me.)

:funmeteryes: