I've heard that EH are considering letting sheep onto Silbury hill to keep the grass down.
This mindnumbing idea has the side effect that any stay sheep that fall into any moving voids and will fill the holes!
I suppose that spiffy new rabbit spoof fence with the traps that don't work will have to be modified.
PeteG
Of course the alternative to sheep is to let the...(oooIH! Shut the Fack Up or I'll kick yer Fackun ed in!!...)