Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

Coordinators:
Jean-Michel Sauvage (France)
Mars Muusse (the Netherlands)

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Herring Gull plumages:

HG 1cy July
HG 1cy August
HG 1cy September
HG 1cy October
HG 1cy November
HG 1cy December

HG 2cy January
HG 2cy February
HG 2cy March
HG 2cy April
HG 2cy May
HG 2cy June
HG 2cy July
HG 2cy August
HG 2cy September
HG 2cy October
HG 2cy November
HG 2cy December

HG 3cy January
HG 3cy February
HG 3cy March
HG 3cy April
HG 3cy May
HG 3cy June
HG 3cy July
HG 3cy August
HG 3cy September
HG 3cy October
HG 3cy November
HG 3cy December

HG sub-ad Jan.
HG sub-ad Feb.
HG sub-ad March
HG sub-ad April
HG sub-ad May
HG sub-ad June
HG sub-ad July
HG sub-ad Aug.
HG sub-ad Sept.
HG sub-ad Oct.
HG sub-ad Nov.
HG sub-ad Dec.

HG adult January
HG adult February
HG adult March
HG adult April
HG adult May
HG adult June
HG adult July
HG adult August
HG adult September
HG adult October
HG adult November
HG adult December

Herring Gull (argenteus) BLB H152381 adult, August 2010, September 2011 & January 2016, Westkapelle, the Netherlands.

Ringed as adult (>4CY), on August 28 2008 near Oostende beach, at Middelkerke, Belgium (51.183 N, 2.833 E). Handful of recoveries, all from Westkapelle.

below: Herring Gull (argenteus) BLB H152381 adult, January 31 2016, Westkapelle, the Netherlands.

Very dark, windy and dizzly weather, hard to get the true grey tone right in this image, but matching local argenteus. Already white-headed.

below: Herring Gull adult H-152381 (argenteus) September 20 2011, Westkapelle, the Netherlands. Pictures: Maarten van Kleinwee.

Adult European Herring Gull moulting to winter (basic) plumage. P6 fully grown, the outer primaries P9 and P10 still have to be shed. Winter head streaking.

below: Herring Gull (argenteus) BLB H152381 adult, August 10 2010, Westkapelle, the Netherlands.