Barrow's Goldeneye Juv.

Canon 1D-X, 500mm x 1.4 TC, braced in truck window
f11, 1/1000, ISO2500

The photo is as much for the dense bulrushes and cattails as the bird.

50% of full frame. Adjustments to Levels. Selective sharpening to bird.

C & C, please. Thanks for looking.

(This could be a juvenile Common Goldeneye, but that would pretty unusual in this pond. I can't tell juvie Common and Barrow's apart unless they are in flight or have their wings extended.)