Roy's images of his Parrots are so beautiful that I was challenged by this.
Since Isabel commented on the contrast, I decided to see what I could do with this image.
Basically, I lightened the background on Roy's original, then used a layer mask
to let Roy's original image of Huey show through. I then upped the saturation of the
eye area slightly. I used curves to bring out a little more detail in the beak.