This morning more warblers had arrived on site and a Lesser Whitethroat was singing in bushes on the south side of the Slurry Lagoon dry end and two Whitethroats were also singing, near the river and Wader Scrape. There was also a mixed flock of hirundines over the Deep Pit and railway bridge. Five Shelduck were on the Slurry Lagoon early on before flying off NE but were later replaced with two more. A Wheatear was on the Wader Scrape with two Oystercatchers.  PS.