I can't ever remember seeing a Gull dive into the water and come up with such a huge fish, normally I see them closer to shore picking up clams or the such.
This is another one of those instances where I don't see any PF on my calibrated monitor but on another un-calibrated one I see it pretty badly (maybe my un-calibrated monitor is just REALLY bad). Let me know if you notice any, thanks!
This is a pretty heavy crop, maybe ~50%
Pentax K10D ,Tokina 400mm f/5.6 AT-X
1/500s f/8.0 at 600.0mm iso200 (with Kenko 1.5xTC)