|Good comment, Srikumar, but very difficult in practice when the bird is moving around so fast. Actually, the camera was set on "continuous" to follow the motion, but even that did not quite work. These little birds are in the weeds around an estuary, and sometimes barely visible to focus on. I have used bask button auto focus on objects/animals that are more or less staionary, but I don't think it would work hear at the bird is not necessarily staying in the plane of focus.
Anyway, it thought it would be interesting to show one in action.