This is one of at least a pair of Jackrabbits that live around my house. I've tried to get a shot of them for years and I finally, sort of, got one. I wish I had been a little smoother with panning... maybe next time.
Thanks guys. I think that I was a little too optimistic about using 1/100s. Maybe just a little faster shutter speed. It's always a tough call (for me) when trying to take advantage of motion blur.