Hitting Kangaroo

Submitted: Tuesday, Dec 01, 2015 at 07:26
ThreadID: 131019 Views:3746 Replies:13 FollowUps:26
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Heard on the radio show, that you know ...."Macca". Sunday mornings 702
Why do kangaroos leave the road, turn and come back, then get hit.?
Two old farmers pondering this think they have the answer.
The kangaroo first hops away from the glare of headlights. As he hops away he sees a shadow of himself, gets scared and turns right back onto the road. The inevitable happens.
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Reply By: Michael H9 - Tuesday, Dec 01, 2015 at 08:20

Tuesday, Dec 01, 2015 at 08:20
I've hit one in daylight, he jumped back towards me. I think they just zig zag as they go like a rugby player side stepping.
If you watch antelope running away from cheeta's, they side step and even completely turn around. Anything so the predator can't build up to full straight line speed.
AnswerID: 593282

Reply By: Allan B (Member, SunCoast) - Tuesday, Dec 01, 2015 at 08:44

Tuesday, Dec 01, 2015 at 08:44
Ah Sandy, only the does turn and come back. It's the female entitlement to change their mind. LOL

Kind regards and Seasons Greetings.
Cheers
Allan

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Follow Up By: OBJ - Tuesday, Dec 01, 2015 at 08:54

Tuesday, Dec 01, 2015 at 08:54
Has the deer a little doe??? Sure has .. two bucks!!!!

Sorry .. I don't know what just came over me!!!!!

OBJ
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Reply By: The Landy - Tuesday, Dec 01, 2015 at 09:30

Tuesday, Dec 01, 2015 at 09:30
Doesn't everyone have a Sonic Roo Whistle? ;)

Just a thought, Baz - The Landy
AnswerID: 593286

Follow Up By: Winner W - Tuesday, Dec 01, 2015 at 11:19

Tuesday, Dec 01, 2015 at 11:19
Landy do those roo whistles work? I hope the regular outback drivers can give their opinions.
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Follow Up By: The Landy - Tuesday, Dec 01, 2015 at 11:38

Tuesday, Dec 01, 2015 at 11:38
Not sure, I don't have one, but have never hit a roo....(touch wood!).

I guess the only way to really know is having one and hitting a roo, in which case the answer would be no!

Otherwise how would you ever really know...

Cheers, Baz...
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Follow Up By: Allan B (Member, SunCoast) - Tuesday, Dec 01, 2015 at 12:17

Tuesday, Dec 01, 2015 at 12:17
But Baz, you may hit a deaf roo and then presume that the Sonic Whistle did not work!
Cheers
Allan

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Follow Up By: Hewy54 - Tuesday, Dec 01, 2015 at 12:25

Tuesday, Dec 01, 2015 at 12:25
Have tried them, hit a roo with and without. In the end I called it my elephant scarer - have never hit an elephant while using them.
I find the best way to avoid wildlife is to not travel at night, although I know this is not always possible.
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Follow Up By: Member - John - Tuesday, Dec 01, 2015 at 20:03

Tuesday, Dec 01, 2015 at 20:03
I think they only work if fitted in conjunction with a Hyclone or two.................................
John and Jan

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Follow Up By: Member - Russler - Tuesday, Dec 01, 2015 at 20:42

Tuesday, Dec 01, 2015 at 20:42
I was told that the Shoo Roos do work, but that they aren't infallible. This was second hand info from somebody that had a fleet car, who in turn was informed by the fleet manager that after installing the Shoo Roo across the fleet the roo strike rate dropped significantly (I don't recall the percentage quoted). So it appears that yes, over a great number of vehicles, it does reduce the chance of hitting a roo, but will it prevent specifically you from hitting a roo, there's no guarantee.

For the record, I do not have a Shoo Roo or any other roo deterring device, but I have not hit a roo either (came close once though).
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Follow Up By: Danna - Tuesday, Dec 01, 2015 at 20:45

Tuesday, Dec 01, 2015 at 20:45
Hi everybody
We have two types of whistles 2 small and 2 large-removable on each side of Troopy.
They definitely work for us.
First time we have seen really, really how they work was when we drove from Cocklebiddy up to Rawlinna. Roos were literally falling over they were outrunning their own body and then disappearing over the horizon. There were some, they just somersault over fence and then they quickly pick them self up and kept running to wards to horizon. But all roos were running away from us. We have big, big laugh it was so funny.
We drove at night few times on roads like Plenty Hwy and no problem with roos either, as they run away from us to the bush, but never cross road.
Our friends have same set-up and they can’t have whistles working when they have their Rottweiler dogs in back of the ute. The whistles must be covered with plastic bags. Other wise dogs go wild, they very scared.
Cheers Dana
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Follow Up By: Danna - Tuesday, Dec 01, 2015 at 20:53

Tuesday, Dec 01, 2015 at 20:53
I use to build ShooRoos from scratch (on components level) for the company
in Brisbane's - Sumner Park few years ago.
I wouldn't buy it. Too expensive, too heavy, too big & too unreliable.
HooRoo Dana
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Follow Up By: ian.g - Wednesday, Dec 02, 2015 at 16:14

Wednesday, Dec 02, 2015 at 16:14
Shoo Roos appear to work OK however the stipulation is that if there is timber or scrub on the side of the road you're travelling on they are not effective, in open country they appear to work fine. I don't know about the whistles as I have never had one but associates who have bought them complained all the time that they became clogged with insects and grasshopper guts and stopped working
Cheers Ian
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Follow Up By: Danna - Wednesday, Dec 02, 2015 at 20:28

Wednesday, Dec 02, 2015 at 20:28
Ian & others
We all know, that everything need a maintenance. The ShooRoos need same maintenance as the whistles. 1 spray with household detergent & 1 spray with water will do the job when it come to whistles.
With ShooRoos it's not as simple ..... believe me, I know about the ShooRoos more that anyone here! I use to build them from scratch, test them, close them to the cases and pack them to the boxes for expedition.I stand behind 2 pairs/ small & big whistles any time.
They simply do work, and they good fun.
Cheers Dana
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Follow Up By: Member - Scott M (NSW) - Thursday, Dec 03, 2015 at 22:53

Thursday, Dec 03, 2015 at 22:53
Been plenty of scientific research on these devices. None of them have been proved to work. If you want to waste $15 or $20 - up to you.
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Follow Up By: Danna - Friday, Dec 04, 2015 at 21:16

Friday, Dec 04, 2015 at 21:16
Scott M (NSW) I have news for you :

" De gustibus non est disputandum"

HooRoo Dana
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Follow Up By: Member - Scott M (NSW) - Friday, Dec 04, 2015 at 22:04

Friday, Dec 04, 2015 at 22:04
"Pulsate et aperietur vobis"

http://web.archive.org/web/20100821175414/http://www.bees.unsw.edu.au/school/researchstaff/ramp/shuroofinal.pdf
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Follow Up By: Hewy54 - Friday, Dec 04, 2015 at 22:32

Friday, Dec 04, 2015 at 22:32
www.agriculture.gov.au/.../forestry/.../0506_144_final_coleman.pdf
One bit of research that claims the shooroo has no significant impact.
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Reply By: Member - Sandy J (NSW) - Tuesday, Dec 01, 2015 at 09:52

Tuesday, Dec 01, 2015 at 09:52
Hit hitting oh dear.
AnswerID: 593287

Reply By: gbc - Tuesday, Dec 01, 2015 at 10:55

Tuesday, Dec 01, 2015 at 10:55
Do they turn and hop back at the light when I am spotlighting them? No. Myth busted?

I think they just panic at the combined noise/light and go into flight mode which includes doing Crazy Ivans which may or may not be in an effort to lead the 'predator' away from does/juveniles.

Some do that, but then some just casually hop off the verge into your path like they haven't a care in the world.

There's no one single answer, but it would be nice to not have to skittle them and the best way is to drive in the middle of the day.
AnswerID: 593288

Follow Up By: Member - Sandy J (NSW) - Tuesday, Dec 01, 2015 at 11:04

Tuesday, Dec 01, 2015 at 11:04
The discussion on Macca was about truck drivers who no doubt hit many in the night.
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Reply By: Steve D1 - Tuesday, Dec 01, 2015 at 13:24

Tuesday, Dec 01, 2015 at 13:24
I was told once by a farmer up north, that they only see the first car / truck, and they then run behind and hit the second vehicle.
Having hit 2 in these circumstances ( both in twilight hours ), there may be some truth to it.
And no I am not sure if the sonic things work. Hit one with, one with out.

Steve
AnswerID: 593291

Reply By: Been-Everywhereman - Tuesday, Dec 01, 2015 at 14:33

Tuesday, Dec 01, 2015 at 14:33
They don't make a roo shu to suit my vehicle. It would be good if they did. I would be first inline to buy one.
AnswerID: 593292

Follow Up By: Danna - Wednesday, Dec 02, 2015 at 20:45

Wednesday, Dec 02, 2015 at 20:45
I use to build ShooRoos from scratch (on components level and sometime to the finished product incl. testing) for the company in Brisbane's - Sumner Park few years ago.
I wouldn't buy it. Too expensive, too heavy, too big & too unreliable.
HooRoo Dana
0
FollowupID: 861546

Reply By: Member - Robert1660 - Tuesday, Dec 01, 2015 at 15:59

Tuesday, Dec 01, 2015 at 15:59
Hi Guys,
After travelling through north western NSW a few years back and recently across the Barrier Hwy where roos, emus and goats were in plague proportions it appeared that 90% of roos will run away from the car but 100% of emus will run at the car. With respect to goats grazing along the Barrier they can graze very close to the road and provided you don't blow the horn will happily graze there and not be overly bothered by passing traffic. Nevertheless animals regardless of what they are need to be treated with great respect when grazing near a road.
Robert
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Reply By: sweetwill - Tuesday, Dec 01, 2015 at 17:04

Tuesday, Dec 01, 2015 at 17:04
Normaly dont drive of a night, but had to one night near Broken hill, slowed to 80ks and the Roos seamed to just look up as I passed never hit one. On the subject of Shoo Roos had them on and hit roos on two acations.
AnswerID: 593301

Reply By: Bob Y. - Qld - Tuesday, Dec 01, 2015 at 18:37

Tuesday, Dec 01, 2015 at 18:37
Anyone that can work out how kangaroos think would have a fair idea on how wom..............oh, never mind, I won't go there. :-)

The farmer's idea about shadows is a good explanation Sandy, because that's often the case with cattle, and especially horses. But even the 'Roos don't know what they're thinking. I've even been "T-boned by one, passing a street light, while in my Falcon. Was he blind, or just keen to escape? Don't know, but the Falcon was injury-free.

Over the past 5-6 years, I've hit heaps of 'roos, returning to Longreach in trucks, on the stretch from Winton. Where they are thick, it's possible, not by choice though, to hit 3-4 or even more, over less than a kilometre. Some hop onto the bitumen, others are just standing in the "kill-zone", though I do try to avoid these, and others must be on a dare, as they do a mad, suicidal dash across the highway, from 20-30 metres to either side. The outcome is inevitable........if the prime mover doesn't get them, then there's still 50M of trailers following. :-(

And until it rains, 'n rains, 'n rains, they'll hang around the highways, getting a bit to eat on the shoulders, but otherwise becoming roadkill. The crows and hawks don't seem to mind.

Bob

Seen it all, Done it all.
Can't remember most of it.

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Follow Up By: gbc - Tuesday, Dec 01, 2015 at 19:47

Tuesday, Dec 01, 2015 at 19:47
That stretch into Ilfracombe where they cross the road onto the railway reserve and back again every night would have to be one of the greatest engineered roo killing roads in the country. Who came up with that idea?
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Follow Up By: racinrob - Tuesday, Dec 01, 2015 at 20:00

Tuesday, Dec 01, 2015 at 20:00
Even sheep are smarter than the average 'roo and that's saying a lot !

Rob.
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Follow Up By: Winner W - Tuesday, Dec 01, 2015 at 20:10

Tuesday, Dec 01, 2015 at 20:10
I have never seen so many roos as on that exact stretch of road after Longreach to Winton. And you see the roadkill every twenty meters or so .
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Follow Up By: Bob Y. - Qld - Tuesday, Dec 01, 2015 at 20:36

Tuesday, Dec 01, 2015 at 20:36
I don't travel it often but that Longreach-Barcaldine stretch definitely has a higher population of Roos than the Longreach-Winton one. Must be something to do with the extra timber(ie shelter) along there?

Bob

Seen it all, Done it all.
Can't remember most of it.

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Follow Up By: pop2jocem - Tuesday, Dec 01, 2015 at 21:02

Tuesday, Dec 01, 2015 at 21:02
In no particular order of inteligence, or should I say lack of any decernable traces, I reckon if you removed whatever passes for a brain in emus, 'roos and sheep and installed some sort of pacemaker that kept them breathing, their hearts beating and their ability to eat and breed in place, you wouldn't see any appreciable difference in behaviour.

(;=))

Cheers
Pop
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Follow Up By: Member - Blue M - Wednesday, Dec 02, 2015 at 01:38

Wednesday, Dec 02, 2015 at 01:38
Bob, A few years back I rode a motor bike from Longreach to Winton. It was in January and I left Longreach about 13:00. Had to hold my breath for most of the way. Lol

Cheers
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Follow Up By: Bob Y. - Qld - Wednesday, Dec 02, 2015 at 07:23

Wednesday, Dec 02, 2015 at 07:23
Ha ha, yeah they can get pretty "ripe" alright, Blue. Often wondered how the more squeamish types handle all the blood 'n gore, scattered across the pavement?

Ran over a ripe one in my Falcon once! Car was rank for months, and after a long run would smell like a slightly off Sunday roast. :-)

Bob

Seen it all, Done it all.
Can't remember most of it.

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Follow Up By: Member - Ian T6 - Wednesday, Dec 02, 2015 at 13:18

Wednesday, Dec 02, 2015 at 13:18
My sisters and I are not amused at all this negatively about our intelligence. Now if you were referring to those airheaded blondes the merinos.

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Reply By: Member -Pinko (NSW) - Tuesday, Dec 01, 2015 at 22:04

Tuesday, Dec 01, 2015 at 22:04
We have hundreds of them surrounding surrounding our place and my wife complains because they choose to lay in the warm mulch in the garden.
She walks about the yard clapping my thongs together and that seems to thin them out !
Living is a journey,it depends on where you go !
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Follow Up By: ian.g - Wednesday, Dec 02, 2015 at 16:20

Wednesday, Dec 02, 2015 at 16:20
Funny that when you read these posts especially those from Bob Y you get a add from ExplorOz Shop recommending a book on bush tucker. Talk about road kill crusene.
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Reply By: Life Member TourBoy, Bundaberg - Friday, Dec 04, 2015 at 07:10

Friday, Dec 04, 2015 at 07:10
Strangely enough I seem to hit less roos when I have muddies on the vehicle. The noise confuses them and they stand upright looking around rather than hopping off mindlessly in any direction.
Cheers,
Dave
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Reply By: The Bantam - Saturday, Dec 05, 2015 at 11:06

Saturday, Dec 05, 2015 at 11:06
There is a couple of things to think about.

It has to be remembered both Kangaroos and Emus are not very clever ( the kangaroo has a brain a bit bigger than a squash ball, the emu has a brain a bit bigger than its eye) neither do much of what we would consider "thinking" and most of their survival methods rely on preprogramed behaviours.

Both Kangaroos and Emus know that once they got moving at speed not much will catch them.

So it may be reasonable that the roo hops away from what frightens it ...... but now with compromised vision due to the powerfull lights ..... it now can only see the road clearly and sees it as clear open ground that it can make speed quickly on ......... its tinny brain has not yet evolved to understand that it is no longer the second fastest thing on the Australian land surface.

As for the fastest thing ..... well the Emu knows its the fastest thing in Auatralia and it "CAN run the pants off a kangaroo" it too has not yet evolved to understand that it is not faster than a motor vehicle.

Emus and to a lesser extent Kangaroos will often run straight down the centre of the road tlll they can see a point where they can exit at full speed.

Both the emu and the kangaroo also have the ability to change direction at nearly full speed and if they see that they are not leaving the threat way behind they will change direction rapidly ....... not much thinkin goes on ........ the kangaroo will bounce off to either side at any time, the emu will stik its wings out and drop one shoulder and turn 90deg at top speed.

The advice has and remains consistent ........ reduce speed and dip lights.

On the matter of whistles and shooroo.

like so many things like electronic rust prevention and intake turbulisers ( hiclone and the like) ..... the basis is a plausable concept that fails because it runs into the limits of phsyics.

The problem with ShooRoo and an issue that has been known and discussed for over 30 years is the lack or power and SPL that the device can produce.
Ultrasonic animal deterants have been well known and proven over many years...ranging from dog whistes to rodent repellents.
In a quiet situation and at short range it may be possible to prove the ShooRoo has some effect.

BUT, in a highway situation where the vehicle is noisy and running at high speed, the ShooRoo power output gets burried in the high noise floor and if effective at all, its range will be short.

The original ShooRoo was built with 2 Motorolla piezo horn tweeters ...... I know these well as they where common in lower priced Musical instrument speakers of the peroid ...I probaly still have a spec sheet somewhere........I know how much they will output and it will be drowened out by road and engine noise quite easily.

The various whistles on the other hand are powered by airflow ..... airflow that increases with speed so the faster you go the louder they get .... and 100kmh airflow thru a whistle can produce quire some SPL.

So on plausability ..... the air powered whistles have some chance of being effective.

cheers
AnswerID: 593407

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