Calvert BBOWT Lake; Bitterns looked for from 1st hide by John, myself and others virtually all day but no sign as far as I know in daylight; 1 hauled up reeds to roost in left reebed 16:50.

With Warren C and Steve N we gave gull pre-roost a go. We had 3 distinctive gulls seen here before, 1st W and nr adult CASPIAN GULLS and the adult Argentatus Herring Gull (thayeri type) with white wing tips (see photographs above). Lots of Herring Gulls, large numbers from landfill overflew to sailing lake at dusk. Coot seen stating to build a nest!! (Tim Watts)