I'm sucks at bird in flight. Hand holding the 500f4 II is just a bit much for me and I dislike the use of tripod, not suitable for shooting inside a car. Recently I acquired a 400f4 DO II and love it. The lighter weight and balance of this lens is better for me handholding.
1DX
400f4 DO II + 2X III = 800mm
1/3200
f9
ISO-2500
HH from car.
The juvenile was trying to catch something on the ground and left its perch several times over the course of more than 1 hour, giving great opportunities to practice with both the 500f 4II and the 400f4 DO II + 2X TC.
Cropped to ~ 1/3 of FF.
Thank you for your comments.
Loi