Got to love that! Clarity and detail, the eye crystal sharp. That is one proud and regal Bald eagle. The 800 really gets you close. Just a bit of detail lost in top head feathers, I love close shots, but maybe just a bit more BG on top and L side.
Good suggestions by Brendan. Feather detail is pretty good for ISO 1600. I would run some NR on the BG. And I might tone down the brightest whites on the top of the head.
As always, thanks for the helpful advice - I did apply noise reduction in Lightroom, but I guess it needed more.
I loosened the crop a bit, toned down the highlights on the upper part of the head, and applied more noise reduction to the background. What do you think?