Very nice photo, Dave.
I too like photographing the birds some may pass by because they're not very 'flashy' or colorful. :)
Perhaps you'd consider just a bit more contrast to enhance the impact.
Not that I disagree with your interpretation of the bird; it's just a suggestion.
Good looking photo. I really like the nice pose as well as sharpness. I might have cropped a bit off the right and bottom to move the bird a bit off centre. Dave