Tufted Duck x Scaup hybrid with 8 quite large young at CBWR yesterday evening 100m off board-walk, first sighted several weeks ago.
Also Dipper in Hamadryad Park ‘pond’.
Earlier in the afternoon Common Sandpiper in Ely river-mouth with 5 Turnstone. Sand Martin young visible in open-ended dock rear of Techniquest – second clutch in this nest-hole.Also SM still entering nest-holes in closed dock opposite Dr.Who Experience. 8 species of butterfly including Brimstone.