Took my 'landscape' camera out to perfect my BIF game. The Killdeer and Avocets were out, which made for a fun day.
This one is only 500 pixels from full frame (less than 10% crop) on the 45mp D850.
D850
600mm + 1.4
Handheld
ISO 800
1/3200
f6.3
LR then PS, DNAI. Had to add a touch of canvas to bottom and right, cleaned up one tiny part of a wing. The lack of smoothness in the beak edges is from water drops, which you can see at full res.