Great-crested Grebe and chicks
Totals for all waterfowl were: Mallard (72), Moorhen (11; 8 adults and 3 juveniles), Coot (5; 3 adults and 2 juveniles), Tufted Duck (17; all adults), Lesser Black-backed Gull (1 adult), Grey Wagtail (4), Cormorant (1) and Mandarin (19; 15 adults and 1 brood of 4 ducklings).
Other birds seen and heard were: Swallow (12), House Martin (2), Stock Dove (heard), Chiffchaff (4 singing) and Blackcap (1 singing).
After the WeBS walk, I had an hour in the ringing site, where I saw 1 Ringlet, 1 Red Admiral, 1 Tree Wasp, a Marmalade Hoverfly, a Sphaerophoria scripta (Hoverfly) and 1 Meadow Brown. The first Cinnabar Moth caterpillars of the year were on Ragwort by the top reservoir.
Cinnabar Moth caterpillar