yup, no doubt there was a big difference in speed with all the critters, the pic with all the cow elk making dust looked just like that, tons of dust but hardly any movement or speed, when we flew the open flats we were cruising pretty fast and the antelope were easily breaking 50mph i'd say, because i think in the helicopter we were going pretty fast, something like 60mph, and then even the sheep were covering ground really fast in the rocks, no problem for them there, most of the bull elk we seen just looked at us as we circled and then camly walked off into the thick stuff.
DAN