I wish the head was angled a bit more our way. I might crop it a bit looser, esp. below and behind, if you have the canvas.
On my monitor, I see a subtle green color cast, shows up the most in the whites. I did a trial to remove it, and just a touch of correction seemed to help. I don't know this bird, so perhaps this is natural, but just something to consider.
Lovely bird, well captured. Great colors and background. Would have wished for a bit of a head-turn which would have made this a killer. Agree that a little more room would help (I would say top and bottom, but that's personal preference.)