Great capture, Troy (both yours and the heron's!). Really sweet BG, very good detail on the bird -- perhaps a little extra sharpening around the eye is in order. I also wonder about brightening the bird (but not the BG) a bit to open up the image? Not sure about this, as I think the photo works as is.
That is so cool, love interesting action shots like this. Awesome pose, exp., details, and like how you can see the outline of bottom part of fish in pouch. Great capture, Troy!