Nice looking bird. The fill-flash looks just right and the BG is a pleasing splash of soft color. I would selectively sharpen the bird some more. I don't think you need that much room on the top.
Thank you all for your comments. Here's a repost that corrects the blue cast (color balance -42 yellow) and extra selective sharpening applied to the bird (USM250/0.25/0).
I feel perhaps a version between the original and the repost? I kind of see the Aussie bush in that blueish cast of the original often enough. What a neat little bird. Just lose the second catchlight if you can. :)