Missed!

Now, I don't know about you but this happens to me and still to often. I really should know better. You're approaching a bird and it decides to leave. Now, what you should do is remember that in the two or three steps you did you're not all that far out of focus. You should also remember that you're in single area AF and that just blindly jabbing the AF button is not going to help. In this case this is the third shot, the first two had the barn in focus, then common sense and a quick twist on the focus ring got me this shot.