Your knowledge on birds is better than mine, its a Seagull in my books !!!!!
Personally I would crop a little more bit lik this .......
The way I see it, the shot is of the bird so you need as much of the subject to fill the frame.
Sorry I can't comment on colours etc, not read that far in the manual as yet, but will get there one day.
Hope others comment soon so we can both learn more
If you want to edit any of my images to demonstrate points/techniques to either myself or others please feel free to do so.
Still learning with Canon 40D, 28-135mm, 100-400mm L and Elements 6.
Any Advice greatfully received.