A Wilson's Phalarope in non-breeding colors, lifted the exposure, white balance, a little sharpening and noise reduction, white point and black point adjusting, lift shadows and reduce highlights, no crop, removed a feather that was in the background.
Canon 7D2, EF 100-400 Mk 2 + EF 1.4TX mk 3 at 504mm, 1/1600 ss, f/11, ISO 400, 500 and 800 in order

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No catch or it was consumed before the bird came up from the plunge.

This bird is normally found swimming on the water picking of insects at of a little below the surface. They will often do a dervish to stir up food. This one was the only one around and was flocking with Least, Western, Baird's and Pectoral Sandpipers.