Taken last Sunday at Clarence Cannon National Wildlife Refuge. It might be hard to tell, but it was a clear calm morning. I was more interested in ducks but a few grebes foraged by.
Straight size reduction, no sharpening applied. Full frame plus, added canvas above, below and to the right.
Nikon D500, 500mmF4VRII, TC-14EIII
f8, 1/1250s, iso800