The finer points of getting a hummer

Capturing the image of a hummingbird is more difficult than you might think.  Trying to stop the motion of the wings is difficult at best.  The only time I was able to stop the wings was when I had my shutter speed at 1/3200th of a second.  And even then you have to crank the ISO way up.

Most of the photos below were taken at ISO 1250 and shutter speed of 1/500th at f/5.6.  I was using the 2x Teleconverter, so f/5.6 was as low as I could go but it rang in at 400mm.  The last three were at ISO 100 and 1/20th of a second.  Yes, the second to last one is taking a dump.