I shot this the other day and had a great time with the company of moderators, Roman and Denise. We had great light and alot of bird activity.
Nikon D300 500mm F/4 lense
F/8 1/2500 sec -1/3 comp Tripod Mounted
Sharp, very nice exposure, great wing position with lovely display of the primaries.
In a perfect world,I wish the head had better seperation from the wing. A lower shooting angle might have helped, or if time allowed, a few steps to your left.
I know how it is though when they flap, you don't have time to move!
I love the detail and contrast in the feathers. I agree with Randy with regard to your position/bird's pose. You stopped the action nicely here, well done.