Herring Gull- Zilvermeeuw (argentatus & argenteus)

(last update: December 15, 2011 )

Herring Gull - 4cy /sub-adults July

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.
1cy argenteus in November, ringed in Belgium. (25637 bytes)Herring Gull A3CV 4cy-5cy (argenteus), July 15 2009, Boulogne/Mer, France. Pictures J-M Sauvage.
2cy argenteus in March, ringed in France. (57822 bytes)Herring Gull GC 89612 4cy (argenteus), July 2011, IJmuiden, Netherlands.
2cy argenteus in March, ringed in France. (57822 bytes)Herring Gull GC 89668 4cy (argenteus), April-August 2011, Leiden, Netherlands.
rings argenteus: France
2cy argenteus in March, ringed in France. (57822 bytes)Herring Gull T4A 4cy (argenteus), July 19 2010, Boulogne/Mer, France.
rings argenteus: the Netherlands
2cy argenteus in February, ringed in the Netherlands. (27385 bytes)Herring Gull 5W 4cy (argenteus), July 07 2010, Boulogne/Mer, France. Photo: M. Kleinwee.
2cy argenteus in March, ringed in France. (57822 bytes)Herring Gull 5.419.235 4cy (argenteus), 2009-2011, Leiden, Netherlands.
rings argentatus: Poland
sub-adult argentatus in July, ringed in Poland. (73036 bytes)Herring Gull DN11302 4cy (argentatus), July 17 2003, Tampere, Finland (61.31N, 23.43E).
rings argentatus: Finland
sub-adult argentatus in July, ringed in Finland. (65906 bytes)Herring Gull C60P8 5cy (argentatus), July 15 2003, Tampere, Finland (61.31N, 23.43E).
sub-adult argentatus in July, ringed in Finland. (66942 bytes)Herring Gull C68J1 4cy (argentatus), July 16 2003, Tampere, Finland (61.31N, 23.43E).
sub-adult argentatus in July, ringed in Finland. (74985 bytes)Herring Gull C95E0 4cy (argentatus), July 17 2003, Tampere, Finland (61.31N, 23.43E).
sub-adult argentatus in July, ringed in Finland. (76275 bytes)Herring Gull CA444 4cy (argentatus), July 16 2003, Tampere, Finland (61.31N, 23.43E).
sub-adult argentatus in July, ringed in Finland. (79350 bytes)Herring Gull HT-205231 sub-ad (argentatus), July 15 2003, Tampere, Finland (61.31N, 23.43E).
sub-adult argentatus in July, ringed in Finland. (75728 bytes)Herring Gull HT-xx0900 sub-ad (argentatus), July 15 2003, Tampere, Finland (61.31N, 23.43E).
sub-adult argentatus in July, ringed in Finland. (71595 bytes)Herring Gull HT-xx2309 sub-ad (argentatus), July 15 2003, Tampere, Finland (61.31N, 23.43E).
unringed 4cy Herring Gulls
Herring Gull 4CY, July 09 2013, Katwijk, the Netherlands. PMS: P2/P3.
Herring Gull 4CY, July 09 2013, Katwijk, the Netherlands. PMS: P2/P4.
Herring Gull 4CY, July 09 2013, Katwijk, the Netherlands. PMS: P2/P4.
Herring Gull 4CY, July 09 2013, Katwijk, the Netherlands. PMS: P2/P5.
Herring Gull 4CY, July 09 2013, Katwijk, the Netherlands. PMS: P2/P5.
Herring Gull 4CY, July 09 2013, Katwijk, the Netherlands. PMS: P2/P5.
Herring Gull 4CY, July 09 2013, Katwijk, the Netherlands. PMS: P2/P5.
2cy argentatus in July. (70842 bytes)Herring Gull sub-adult, July 18 2013, Katwijk, the Netherlands. PMS: P2/P5.
2cy argentatus in July. (70842 bytes)Herring Gull 4cy, July 18 2013, Katwijk, the Netherlands. PMS: P2/P5.
2cy argentatus in July. (70842 bytes)Herring Gull sub-adult, July 18 2013, Katwijk, the Netherlands. PMS: P2/P5.
2cy argentatus in July. (70842 bytes)Herring Gull sub-adult, July 18 2013, Katwijk, the Netherlands. PMS: P2/P5.
2cy argentatus in July. (70842 bytes)Herring Gull sub-adult, July 18 2013, Katwijk, the Netherlands. PMS: P2/P5.
2cy argentatus in July. (70842 bytes)Herring Gull sub-adult, July 18 2013, Katwijk, the Netherlands. PMS: P3/P5.
Herring Gull sub-adult, July 09 2013, Katwijk, the Netherlands. PMS: P2/P6.
Herring Gull sub-adult, July 09 2013, Katwijk, the Netherlands. PMS: P3/P6.
Herring Gull sub-adult, July 09 2013, Katwijk, the Netherlands. PMS: P3/P6.
2cy argentatus in July. (70842 bytes)Herring Gull sub-adult, July 18 2013, Katwijk, the Netherlands. PMS: P3/P6.
2cy argentatus in July. (70842 bytes)Herring Gull sub-adult, July 18 2013, Katwijk, the Netherlands. PMS: P3/P6.
2cy argentatus in July. (70842 bytes)Herring Gull sub-adult, July 18 2013, Katwijk, the Netherlands. PMS: P4/P7.
2cy argentatus in July. (70842 bytes)Herring Gull sub-adult, July 18 2013, Katwijk, the Netherlands. PMS: P4/P7.
2cy argentatus in July. (70842 bytes)Herring Gull sub-adult, July 18 2013, Katwijk, the Netherlands. PMS: P4/P7.
2cy argentatus in July. (70842 bytes)Herring Gull 4CY, July 18 2013, Katwijk, the Netherlands. PMS: P3-P10 old.
2cy argentatus in July. (70842 bytes)Herring Gull sub-adult, July 18 2013, Katwijk, the Netherlands.
Herring Gull sub-adult, July 09 2013, Katwijk, the Netherlands.
unringed 4cy Herring Gulls (argentatus)
sub-adult argentatus in July. (76503 bytes)Herring Gull sub-adult (argentatus), July 09-17 2003, Tampere, Finland (61.31N, 23.43E). 4cy birds with open wings.
sub-adult argentatus in July. (93906 bytes)Herring Gull sub-adult (argentatus), July 09-17 2003, Tampere, Finland (61.31N, 23.43E). 5cy birds.
sub-adult argentatus in July. (71490 bytes)Herring Gull 4cy (argentatus), July 09-17 2003, Tampere, Finland (61.31N, 23.43E). Immature birds.
sub-adult argentatus in July. (71266 bytes)Herring Gull 4cy (argentatus), July 14 2003, Tampere, Finland (61.31N, 23.43E).
sub-adult argentatus in July. (76398 bytes)Herring Gull 4cy (argentatus), July 14 2003, Tampere, Finland (61.31N, 23.43E).
sub-adult argentatus in July. (73563 bytes)Herring Gull 4cy (argentatus), July 14 2003, Tampere, Finland (61.31N, 23.43E).