Hawk on a tree

I thought I'd try a little bit of extreme cropping on this image. I took this shot on the bike/running path that leads up to Fort Mason which overlooks San Francisco Bay and the Golden Gate Bridge.

This hawk looked like he/she was taking advantage of the high perch to get a good view of any small animals or fish that were in the area. I liked the fierce and strong gaze it has looking over the branches and how it seems to be calmy seated on a shaky perch.
The reason I chose the cropping for this photo was because I originally included a lot more sky and tree in the photo which seemed to overwhelm the bird's body. With this cropping the bird has more of place in the scene.

Canon 20D, 24-85mm 3.5-4.5, AV f 10.0
[click photo to enlarge]