Beautiful picture. I love how you can see the detail of the snow below the bird. Since there is just white snow, I immediately focus in on the bird. I think it is great colors for a nice wintery shot, with the greys, even though it is a color photo.
This is a very eye-catching piece. Good focus and depth of field. Nicely cooridinated colors (cool greys and white. An awesome shot.
However; IMHO there is not a lot of detail to keep my eye for long. (Is this because of a long zoom???) There is not much in the feathers and of course snow is white. So where this piece does jump out and say "look at me", I personaly don't see much staying power.
I am jealous of the way you got the picture in focus and the contrast right even though there was snow. I don't know how to do that yet. Great picture.