Thanks a lot for your point of view. The bird was so near that I almost forgot about framing while clicking the photo. By keeping the subject in the very middle of the frame. Maybe that time I had it in my mind that I'll crop it later, and while post processing I realized the shot I took, wasn't good enough. And the photo was one of those day's when I just have started using a tele lens. I wasn't much aware of every function of the camera. I shot on shutter priority mode which wasn't appropriate at all in that point.. Will upload a recent photo I've taken..