Regis wrote:
Hand held at 600mm. Distances varied from 30-50 feet.
Top Photo#1- Canon 5Dsr - Canon 300 2.8 II - Canon 2x III - 1/400 - f/7.1 - ISO @ 500.
Middle photo #2 - Canon 5Dsr - Canon 300 2.8 II - Canon 2x III - 1/800 - f/10 - ISO @ 500.
Bottom photo #3 - Canon 5Dsr - Canon 300 2.8 II - Canon 2x III - 1/400 - f/7.1 - ISO @ 500.
Even by your high standards, #1 is a great shot. "Plaintive" look on the bird's face, terrific sharpness and detail, the eye is not only sharp but has great expression. It helps to have a beautiful bird as the subject, but you certainly did him justice.