There is still enough detail visible in the whites to look good.
This would be a good candidate for a multiply blend mode on the whites in PS if you want to try and tease out a bit more.
I like the pose and angle of bird in frame.
The image is rather unbalanced, with all the masses on the left. Would prefer something on the right to balance it a bit. I know, you didn't have time to plant a tree or move in a hill on the right!
I like to look at photos like a painting, thinking about how I would paint the picture, arrange the composition and masses, etc. It does help when you are trying to visualize the best setup, position to shoot from.
Very sharp and a nice pose. You could pull down the whites in the hottest areas just a little more. Why not try cropping the right side at the right edge of the last shrub projecting up into the sky?
Randy, agree about the imbalance. I was happy to get one sharp with the right angle.
Doug, will try your suggestions as well.
George, I havent applied any blur to the BG. NR might have caused some softening. Thx for looking.
Kaus, on my six-year-old laptop, your BG seems noisy, but note that the problem could be my monitor. I say this because if you decided to do more NR on your BG, I for one wouldn't mind the blurrier BG.