Lesser Black-backed Gull flying along DE River shoreline... 6O3A7417Ab

Specific type of Gull has been determined.

 

With the help of those on whatbird.com, this is a Lesser Black-backed Gull.

The red spot on the bill can be seen on Adults during the winter, and the rump and tail feathers seem to indicate it may be in its 3rd winter, using the Stokes Field Guide photographs.

Done