Ross's Goose (Hybrid!)
The ever-present Peregrines watched over the marshes, as did several Buzzards and Marsh Harriers. A Water Pipit by the path surprised me, but I was too slow for a photo....
I moved on to Ludham Airfield, where a large mixed herd (mostly Bewick's) of 183 wild swans remained totally unmoved by an autogyro landing next to them and a Buzzard swooping low over their heads.
Quick point of interest for Ben L: this Buzzard hovered for ten seconds or more on several occasions, so hovering wouldn't seem to be a good field-mark for a Rough Leg!