the male Pallid Harrier experience

all images taken from the official view point so as anyone who has been will know these are seriously heavy crops -- all taken with Canon 5D4 and Canon 400 DO 2 with Canon 2x mark 3 converter -- I have to say that thus far I am mazed by this camera -- the AF is astounding, this bird was mainly a pin prick but 90% of shots were still in focus, some with obvious shake problems, but the detail it produces from such heavy crops is something I have not come across with any other camera including the 1DX -- the light was also dull so 1600 ISO all day --