D800
300mm f/2.8G VR II with TC-17E II
500mm
ISO 640
f/7.1 at 1/1250s
Manual mode
Matrix Metering
0.0EV
AF-C, Dynamic 9 points
Auto white balance
Tripod inside a hide
Cropped from 7360x4912 to 4776x3163
Adjust white balance, highlight recover, lighten overall image, linear burn, curve, clone out dust spots, NR and sharpen
Wonderful pose, perch & BKGR. I love the way perch is coming out of the frame. I would have considered cropping just from the edge of the perch to make is come from a corner. Also, you can consider toning down the perch & bird's breast a bit.