Thank you Nagen and Rocco. Caught these while out birding with the T2i / 400 f5.6 combo. Antelope are quite skittish - I had less than a minute to pop out of the car, unfold the tripod, frame them, and snap off a few pics before they ran off. Along with photographing antelope, today was another first for me also - I shot raw for the first time since owning a dSLR (first purchased September 2010), and tried some light developing/pp using LR3. Cheers from Montana.
Nice job 