Date: 2/10/21 3:18 pm From: Barry E. Blust <barryblust...> Subject: Chester County-Lesser Black-backed Gulls at Marsh Creek SP
There have been reports in recent days of Lesser Black-backed Gulls (LBBG) at the park. A large number of gulls gather late each day as they return from feeding/foraging throughout the day, many of them doing so at LanChester Landfill. Just after 4:30 this afternoon I arrived at the park on the west side to find much of the lake was now iced over and there were many Ring-billed Gulls spread across the ice far from shore. I scanned through them with my scope and found at least five LBBGs, all adult or near adult so their very dark wings and mantle stood out from the RBGUs as did their slightly larger size.