Hi Juan, these are nice subjects to photograph because of that lovely eye and detail structure it contains.
Again, I feel Colin has a point about the crop, as I too feel the subject is a little lost within frame, but obviously you really want to avoid cropping too tight as IQ will be lost sadly as you know. I would suggest try to always crop in camera, but allow say 15% ish all round for the final crop/presentation at PP stage, as you then will retain the IQ. As presented I feel it looks a bit flat/cool, warming the Temp up brings a lot more vibrance to the image, likewise adding a sliver of Saturation. Here I also dropped the blue, but took Colin's thought in going portrait.
Excellent IQ, and a beautiful green BG. The open bill adds interest. The eye and eyering are of particular appeal. A vertical as per Steve but with more body showing would have been ideal IMO.
Thank you all for viewing and commenting. I discovered that the D500 has like three different options for the auto white balance and it was set to make the image a little cooler. Is back to where it is supposed to be.