Gulls in NW Europe
(last update: September 25, 2011
Herring Gull (argenteus) NLA 5.377.894 adult, August 2010 & September 2011, Westkapelle, the Netherlands.
Ringed on January 09 2010, Westkapelle, The Netherlands, trapped in winter as 3cy, which is obviously not the correct age.
below: Herring Gull (argenteus) NLA 5.377.894 adult, September 23 2011, Westkapelle, the Netherlands. Pictures: Maarten van Kleinwee.
Fourth-calendar year European Herring Gull moulting to fourth-winter (third-basic, third cycle) plumage.
below: Herring Gull (argenteus) NLA 5.377.894 adult, August 02 2010, Westkapelle, the Netherlands.
Ringed on January 09 2010, Westkapelle, The Netherlands, and aged as 3cy, which is obviously not the correct age. 3CY birds in January have 2nd generation primaries, which partly are still present by August (the outer primaries still to be replaced). Best labeled 'adult'.
P7-P10 old.
