A two-night session so still on the river. A great crested grebe was still on the river, very active (pictured). Also on the river itself were moorhen (single bird), mallard (male, female) and a sandpiper that flew past but with such a brief view that I wasn't able to id it.
Other birds included: great spotted woodpecker (dead tree on far bank a regular haunt), lesser black-backed gull (c.15 in flight), cormorant (4 in flight), swallow (numerous birds over fields), house martin, tawny owl (heard bird in common alder tree next to where I was fishing, it then flew right in front of me), great black-backed gull (9 in flight).