The Sudbury, Assabet and Concord Rivers have been given 'Wild and Scenic' status. Info may be found here. I am privileged to live close enough to the Sudbury to see it daily. My wife and I went paddling on it last evening and spent about twenty minutes in the company of this great blue heron. E-M1.1, O300 f/4. I don't use the MC-14 on the water, both to widen aperture and ease framing - it's not a particularly wide river. For example, the two (uncropped) shots of the heron in the tree were taken while my kayak was lodged in the weeds on the side opposite the tree. In fact, only the image of the heron in flight is cropped.