Well, of course the shot of the bird is great...but I also like the complimentary frame. You don't often (if ever..searching my brain for the answer to that one..) use them and for the most part they don't enhance a wildlife pic, but I think that here your decision was a correct one.
We don’t make art to show someone what something looks like. All this requires is eyes (or a lens). Art is supposed to have meaning, emotion, power, or magic. Alan & Mario "FourThirds"
Nice detail and capture