Cold Hiendley SF: Green Sandpiper 1. Chiffchaff 1 per @CroftonBirder
Wintersett Res. Gull Roost: per @StevieD131
Afternoon was taken up by this 1st W Gull throwing out American Herring Gull vibes in Top Res roost. Very large, pale head, barred rump, dark even Gtr coverts, tail looked dark but not seen well. Tertials dark with pale fringe.
For photographs and video click links below.