Gulls in NW Europe
(last update: September 25, 2011
Herring Gull 3cy, September 25 2012, Katwijk, the Netherlands.
Extent of dark patterns on secondary centres, tiny tips on P6 and outwards, and full tail-band may suggest 2cy, not 3cy birds. However, inner primaries and complete grey saddle strong indications for 3cy.
