Shot at 300mm + 1.4x teleconverter for 420mm at f/5.6 (effective) at ISO640 with exposure time of 1s. (Tripod + Mirror up + Remote) Did the best I could. Not even sure how to process the image to make it better.
This was, hands down, the most challenging shooting I've ever tried to do. Trying to nail the focus is like trying to hit a spray a pinhead with a syringe. We also had intermittent clouds rolling through, so I didn't have the time to focus like I needed. Not sure it would have helped. At some point, I was just making microadjustments and hitting shoot.