I've been trying on and off again for years to bloody an arrow on one without success. I've been oh sooooo close, but they are tough little buggers. They have a way of moving around you, and seem invisable sometimes. I can hear them kicking a rock here and there, but they like to hang out in the thick stuff a lot and it's almost impossible to move quietly in there.
They're not to hard to glass up, but getting close is a challenge. Much harder than Mule Deer in my experience.

"Hunt smart, know your target and beyond"