Very nice eye level for these little guys. I think the composition could improve with less room at the bottom and a little more on top, this will also allow you to remove the birds from the center of the frame.
Love the head peaking out and the nice soft BG. Sharpness is good. Perhaps a little more room on the left of the frame, and I might tone down the tree trunk (either by blurring slighty, burning, or both).