Mountain Sheep spend their whole time during summer far up in the mountains. It's unbelievable which places they can reach.
Killer Sheep on the other hand prefer to browse the endless green spaces of Iceland. But every now and then a road crosses their way. And that seems to be some kind of magnet for the Killer Sheep. As if they need an adrenaline rush they lie next to the road or even on the road and also feed their offspring there. I hope you can imagine how the rest of the story goes ;-)