I would have liked to see a tighter crop on the bird on the right. I'm sure it's been said already, but the remainder of the image is not really interesting to me. Still, the backlighting is superb and the foliage in the background lends itself to the subject. Next time, though, get closer and see what comes of it. :)
I would crop this so the aggressive bird filled the frame. It would be even more intense if we didn't know that he is reacting to another bird. Leave that to our imagination, and let the image captivate us because that image is fantastic. You have captured a great picture. Don't let anything else distract us. The feathers in the wing on the right side of the frame are stunning.