That is a neat shot!
Thats the one downside of FX you need longer lenses or teleconverters to get the same reach as DX. Or you can always use it in DX crop mode but then you lose the pixels.
You seem to be having fun with your new camera though.
I am using AF-group now. That seems to do it for tracking fast movers. And I do love my 200mm. The shorter range and it being a tad bit slower to focus doesn't outweigh the sharpness.
Hmm, I need to find what causes that thin aura at the wings. I didn't process outside the bird.