This crow, was so fun to work with! He let me get very close. He also stayed in position for me. For what seemed like 5 - 10 minutes. Only changing head position, after every shutter click! It was like my own personal model. He only hopped away, when I started doing video. I guess the clicks of the markII, were mesmerizing.
This image really show the sharpness, of the lens combo. Canon 500 f4L IS with 1.4 series II teleconverter.