What a beautiful tern. Thanks for sharing this one. A bit more head-turn might have put a little more light on the side of the head, but sometimes they just don't listen.
What a great bird! If not for the ID I would have thought this was something more from the guillemot or auk families!! Sriking pattern and I like the calling pose you got. I too wish for a lower angle, but like Randy I realize that wwas likely not possible unless risking a nasty dip into the ocean :-) You could work the current faint reflection at the top part of the eye with the dodge tool to make it more visible and give more life to the subject.
Alfredo,
A beautiful species, I never would have thought Tern either, Great exposure given the angle and conditions. Fill flash would have really helped here and a lower shooting angle, but as others said likely impossible. The open beak calling pose, head angle and backside view and crop are all terrific. very well done!