Herring Gull- Zilvermeeuw (argentatus & argenteus)

(last update: December 15, 2011 )

Herring Gull - 2cy December

Introduction

This website deals with the Herring Gulls of the taxa argentatus and argenteus. Argenteus is an abundant breeding species on Iceland, Britain, NW France, Belgium, the Netherlands and N Germany. The taxon argentatus breeds in NE Europe, from Denmark, the coast of the Baltic Sea, Scandinavia and coast of the White Sea. In the centre of the breeding range (Denmark and the NW German coast), birds show intermediate characteristics, indicating there is a cline in argenteus-argentatus. Argenteus in Western Europe is pale-backed, slightly smaller and with relatively much black in the wing-tip; argentatus in the NE Europe is larger, slightly darker on upper-parts and show less black in the wing-tip.
Due to the large breeding range, there is much intra-specific variation in argentatus, with most large, powerful birds in the northern populations, showing the most darkest upper-parts, longest wing and most white in the outer-wing. In this region, some populations may hold substantial number of yellow-legged argentatus. (referred to as "Finnmark yellow-legged argentatus"). In adult plumage, the black sub-terminal spot on P5 is often lacking or strongly reduced to a diffuse streak, broken at the centre. Sometimes P6 lacks black as well. 
In the Baltic region, other yellow-legged argentatus populations occur ("Baltic yellow-legged argentatus"), with adults showing even brighter yellow legs in summer and the upper-parts only slightly darker than West European argenteus, still much paler than Yellow-legged Gull (michahellis). Those Baltic argentatus often show a black sub-terminal spot on P5 in adult plumage.
On these web-pages, we largely follow P.J. Grant: "Gulls, a guide to identification" and E.K Barth's publication as Contribution No. 86, Zoological Museum, University of Oslo: "The circumpolar systematics of Larus argentatus and Larus fuscus with special reference to the Norwegian populations".

rings argenteus: U.K.


2cy argenteus in March, ringed in France. (57822 bytes)Herring Gull A7BS 2cy (argenteus), November-December 2011, Boulogne/Mer, France (50.42N,1.34E). Picture: J-M Sauvage.
2cy argenteus in December, ringed in the UK. (61566 bytes)Herring Gull 1036 1cy (argenteus), December 29 2004, Westkapelle, the Netherlands (51.33N 03.25E). Picture by Pim Wolf.
2cy argenteus in March, ringed in France. (57822 bytes)Herring Gull SU9T 2cy (argenteus), December 03 2012, Boulogne/Mer, France (50.42N, 1.34E). Picture: J-M Sauvage.
rings argenteus: Belgium
juvenile LBBG in October, ringed in Norway. (131273 bytes)Herring Gull FCAV 2cy (argenteus), December 22 2007, Westkapelle, the Netherlands. Ies Meulmeester.
2cy argenteus in March, ringed in France. (57822 bytes)Herring Gull SWAS 2cy (argenteus), December 02 2012, Boulogne/Mer, France (50.42N, 1.34E). Picture: J-M Sauvage.
rings argenteus: Netherlands
1cy argenteus in August, ringed in Belgium. (90559 bytes)Herring Gull PCJF 2cy (argenteus), December 23 2010, Scheveningen, the Netherlands.
1cy argenteus in August, ringed in Belgium. (90559 bytes)Herring Gull KYAK 2cy (argenteus), December 24 2010, Amsterdam, the Netherlands.
1cy argenteus in August, ringed in Belgium. (90559 bytes)Herring Gull YALB 2cy (argenteus), December 23 2010, IJmuiden, the Netherlands.
3cy argenteus in January, ringed in the Netherlands. (68274 bytes)Herring Gull 5.419.232 2cy (argenteus), December 17 2007, Scheveningen, the Netherlands.
rings argentatus: Germany
1cy argenteus in August, ringed in Belgium. (90559 bytes)Herring Gull HC20 2cy (argentatus), December 11 2011, Zaandam, the Netherlands.
juvenile LBBG in October, ringed in Norway. (131273 bytes)Herring Gull AZ23 adult (argenteus), December 23 2011, Westkapelle, the Netherlands (51.33N 03.25E). Picture Pim Wolf.
rings argentatus: Denmark
2cy argentatus in May, ringed in Denmark. (64659 bytes)Herring Gull VF5J (argentatus)2011-2012, Finland. Pictures: Visa Rauste.
3cy argenteus in January, ringed in the Netherlands. (68274 bytes)Herring Gull DKC 4086164 2cy (argentatus), December 23 2010, IJmuiden, the Netherlands.
unringed 2cy Herring Gulls
3cy argenteus in January, ringed in the Netherlands. (68274 bytes)Herring Gull 2cy (argenteus), December 02 2012, Katwijk, the Netherlands.
3cy argenteus in January, ringed in the Netherlands. (68274 bytes)Herring Gull 2cy (argentatus), December 02 2012, Katwijk, the Netherlands.
3cy argentatus in January. (80207 bytes)Herring Gull 2cy, December 03 2013, Katwijk, the Netherlands.
3cy argenteus in January, ringed in the Netherlands. (68274 bytes)Herring Gull 2cy (argenteus), December 23 2010, IJmuiden, the Netherlands.
3cy argenteus in January, ringed in the Netherlands. (68274 bytes)Herring Gull 2cy (argentatus), December 15 2012, Scheveningen, the Netherlands.
3cy argentatus in January. (80207 bytes)Herring Gull 2cy (argentatus), December 03 2013, Katwijk, the Netherlands.
3cy argenteus in January, ringed in the Netherlands. (68274 bytes)Herring Gull 2cy (argentatus), December 23 2010, Scheveningen, the Netherlands.
3cy argenteus in January, ringed in the Netherlands. (68274 bytes)Herring Gull 2cy (argentatus), December 23 2010, Scheveningen, the Netherlands.
3cy argenteus in January, ringed in the Netherlands. (68274 bytes)Herring Gull 2cy (argentatus), December 23 2010, Scheveningen, the Netherlands.