Gulls in NW Europe

(last update: September 25, 2011 )

Herring Gull 3cy, January 23 2013, Katwijk, the Netherlands.

Showing tail and upper-wing pattern. Inner primaries with brown to grey cast and weak arrow pattern near tip. Central primaries have no obvious sub-terminal band with pale tip.

Some birds have a weak mirror on 2nd generation P10.