Thanks Alan,
As it turns out I'm not a convert to my 1D4 which was a choice as opposed to the 7D2. Of course there are aspects I love but its low light, higher ISO grain is not one of them. So my question for you is do you have any samples such as this loon, where the ISO is higher and you're not thrilled. Recently a fellow offered me his 7D2 plus a bit of cash for the 1D4 but I declined. A little off topic here so if you PM that might be better but some others might be interested in some more sample bird shots if you have them illustrating what I'm getting at. Thanks.
1000th, F4, ISO 800 300 2.8 II X 1.4 4896 X 3264 to 1505 X 907 One caveat, I did only roughly AFMA regarding focus.
Jack