Did a walk from Arundel to Littlehampton y'day afternoon. The Ford south section had no waders apart from a pair of Oystercatchers, but 8 Little Egrets. Also two calling Cetti's Warblers, which I don't recall hearing on this stretch before, and a Lesser Whitethroat. Otherwise usual fare. Environment Agency were looking at oil coming into the river from the drain by the prison, which wasn't good. (MD)