Hi Regis. I just love your osprey! It's quite a feat to capture a bird in flight with such facial clarity.
I'm an osprey lover, new to this site, and my latest photos taken are with your exact same system, including the same extender! As I'm new here, it's encouraging to see what can be achieved with my system!
(Below is a sample I took with the same system).
Great Blue Heron at El Dorado Park