But as Ram said, it would have been even better if the head of the bird was in focus. It might just be an illusion because of the peanuts (that are totaly in focus), but the head looks just a litle bit off.
Maybe my eyes are getting worse, don't know, but I don't see it. The head is tilted sideways, towards me, with the eye kind of on the underside. It may be that the colors are a little blown out on the head area. I have trouble getting good exposure in low light with my long lens.