I've collided with four kangaroos so far, damaging my two vehicles. Can I sue the Local Council? If you were to say it's the responsibility of the motorist to avoid kangaroos, then how can it be done?
I did an experiment, which entailed driving at different slow speeds to see what the kangaroos would do. Anything over 70k/h on a back road is high risk and very likely to hit a roo that jumps out onto the road.
At just below 70k/h, the risk is much lower, but the risk is still there. So I kept going with the experiment and found that 60-65k/h was the fastest speed allowable to avoid hitting kangaroos altogether.
I observed what the roos do a various speeds. If you're going fast in a 100k/h zone, roos jump out onto the road right in front of you and you'll hit them.
If you're doing around 75k/h, you have a better chance of avoiding a roo, but one could still surprise you if it's unseen and jumps out of tall grass.
At 60-65k/h, the roos will nearly always hesitate and stand still, or jump back into the bush from the side of the road. As funny as it sounds, roos need time to think. This slower speed gives them that time. I have not hit anymore Kangaroos since I've adapted my driving to that slower speed on back roads. Traffic whizzes past me, and they cause all the road kill, not me anymore.
Wombats are also at risk, they run out in front of vehicles. Again, the slower speed is necessary.
A photo I took of someone else's road kill near my village ....