No sign of the Common Scoter on Mercers but drk Scaup still. Elsewhere single Little Ringed Plover on both Mercers West Lake and Spynes Mere. Also on Mercers West were: 1 Goldeneye (fem), 1 Green Sandpiper, 1 Grey Wagtail, 1 White Wagtail. A handful of Whitethroat and lots of Blackcap and Chiffchaff in the bushes. Plenty of Sand Martin and Swallow and a few House Martin busily feeding over the pits.