Pumphouse & Diddington Pits: Ruddy Shelduck (or possibly Cape Shelduck) flew north mid morning, 3 Ringed Plovers, 2 Dunlin, 2+ Snipe, 4 Greenshank, 2 ARCTIC SKUA'S (dark phase and adult pale phase) circling to north of Pumphouse Pit at 17:50, then flew low SW towards Diddington Pit; c.10 Yellow-legged Gulls, sub-adult Caspian Gull, juvenile Black Tern south at 09:20, Yellow Wagtail, Grey Wagtail.