Rufous Hummingbird

I was trying to get some flight shots of these a few days ago when this one perched near a feeder and started preening. 
It was so energetic and oblivious to me that I couldn't resist shooting it.  I had about 500 frames in the camera when it occurred to me to switch to video-4 seconds later, it flew away.  This was one of my five favorite frames from the session.

7Dii, Sigma 150-600 C @ 600 mm, tripod with ball head and Sidekick, f/10, 1/500, iso 1600, aperture priority, pattern metering,
+1/3 EV.  Processed in LR & PS CC.  Cropped to a 12.1 MP 4x5.  Taken at 6:36 am on July 9th.

Comments and critiques are greatly appreciated.

Thanks,