Gulls in NW Europe

(last update: September 25, 2011 )

Herring Gull (argenteus) GCA.P adult, 2009 & 2010, Westkapelle, the Netherlands. Picture: Maarten van Kleinwee & Theo Muusse.

Ringed as breeding adult (4+cy) on the nest on July 25 2007 at Zeebrugge, Belgium. With metal Brussels H152110.

below: Herring Gull (argenteus) GCA.P adult, October 14 2010, Westkapelle, the Netherlands.

P8 fg.

below: Herring Gull (argenteus) GCA.P adult, September 20 2010, Westkapelle, the Netherlands. Picture: Maarten van Kleinwee.

Adult European Herring Gull, moulting to winter plumage (prebasic moult). The head, neck and chest show extensive dark streaking. The inner primaries contrast with the old P9-P10. Moult score: P6 / P9.

below: Herring Gull (argenteus) GCA.P adult, October 01 2009, Westkapelle, the Netherlands.

below: Herring Gull (argenteus) GCA.P adult, September 19 2009, Westkapelle, the Netherlands.

Adult European Herring Gull, moulting to winter plumage (prebasic moult). P6 / P9.