#1 is a super shot. Great composition with the angular branches. Color is supurb (if it is infact true?) and DOF works a treat to focus on the subject. A crop off the top would make a stronger image and focus more on the bird. Definately worthy of a second, third and fourth look

#2 has an emotive appeal but seems a little soft around the eyes and head area. The image is cropped a little close to the tail for me.....

#3 is a little too far away. The sky is blown and the angle of the shot is "unflattering" to the bird. Too much foliage. Would probably not warrent a second look........

#4 is better than #3 presenting a the bird well but is still too far away, too much grey sky, not showing enough detail in the feathers or head and is a rather unmoving stance by the bird........

#1 is a winner in my book........

Cheers
Andy S....