Sharp Shot, those are great...especially the wood duck drinking. I would have framed it slightly more to the left (thus moving the duck a bit more to the right)...but very nice anyway. Do you use an image like that commercially? I notice the image is cropped to the 16:9 aspect, "full HD" resolution.
It says "500mm f/5.6". Is that the 500mm f/4 ii, closed to f/5.6?