Thanks for the help! I have found it very challenging! These little birds move really fast - eagles, geese, ducks, etc. are much easier to track.

Since I really know very little about these birds, I was very surprised how fast their wings move. I had thought humming birds would be more difficult, but they seem to stay in one place momentarily in flight so a flash can be used.

I am going to try the DOF suggestions, I was shooting in TV mode, so was mainly adjusting that variable and letting the camera decide the aperture.

Now I am waiting on the sunshine.
Thanks again.