Another 30 shots or so, and this is still the best. But I'm getting closer. Because they move so quickly, I bumped the ISO way up, but I think it is too much, so the next time I'm chasing these beauties, that is something I'll be changing. They are so cautious, but I have a quiet spot on the river, and I'm hoping to get a shot that shows the stunning head colours, and the huge feet, and maybe with a still clear reflection...