Coot on Ice

A few years ago at Ridgefield, I got a picture of a coot on ice, showing it's enormous feet.  Unfortunately, I didn't have as much dof as I would have liked and the face was a trifle soft in that image.  I went down two days ago after a week of freezing weather in hopes of getting another chance.  There was an opening in the ice quite near the road (though, unfortunately, several feet below road level and you're not allowed out of cars there) with a raft of coots and a few other ducks using it.  I ended up getting quite a few images that I liked. 

7DII, Sigma 150-600 C @ 421 mm, beanbag on car window, f/11, 1/1250, iso 1250, aperture priority, pattern metering, -1/3 EV.  Processed in LR5 & CS6.  Cropped to 14.2 MP before resizing.  Taken at 10:23 AM on January 6th.

Comments and criticisms are most appreciated.

Thanks for looking,