Loads of gulls this evening c7,000 in total spread over 800m. Approx 5,000 LBB and 1,000-1,500 BH. Beautiful millpond-like conditions made for excellent viewing. 5-6 adult Yellow-legs stood out, a single adult Med gull and an interesting adult Med/BH hybrid plus an adult Argentatus-type herring gull. Moments after I took the photo a Peregrine flew through the gulls causing panic.