Jay - I really like the composition..it feel like the subject has the perfect amount of room all around and just the right amount of space to "fly into" on the left. The down wing position is great.
The framing and the position of the bird is good and almost acts as a contour for the greenery behind. The focus is a tad forward from perfect - given the conditions and settings you could have moved to f8 or a bit lower? But to be honest that is a minor point on a very good picture.