Ty for all the comments on improvements required. Well I was crouching and tried to reach as close as 12-15 feet of the bird. I was hiding behind a big rock while clicking the shots. But im sure I couldnt go as close i would have wanted to though.

@Mrudul - Currently Im using a borrowed Canon 70-300 on a 7D body and am planning to go for a 100-400 next month (hopefully )