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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
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Herring Gull - 2cy November
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 powerful birds in the
northern populations, showing the most darkest upper-parts, longest
wing and most white in the outer-wing. 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 paler mantled argentatus often show a limited black
sub-terminal spot on P5 in adult plumage.
On these 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".
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Herring
Gull E433 2cy (argenteus), November 26 2006, Oostende, Belgium. |
Herring
Gull 5.365.084 2cy (argenteus), November 16 2002, Westkapelle, the Netherlands (51.33N
03.25E). |
Herring
Gull 5.365.172 2cy (argenteus), November 02 2002, Brouwersdam, the
Netherlands (51.45N-03.52E). |
Herring
Gull 5.36x.xxx 2cy (argenteus), November 02 2002, Brouwersdam, the
Netherlands (51.45N-03.52E). |
Herring
Gull 5.365.76x 2cy (argenteus), November 17 2002, Westkapelle, the Netherlands (51.33N
03.25E). |
Herring
Gull 5.412.501 2cy (argenteus), November 11 2002,
IJmuiden, the Netherlands (52.27N 04.33E). |
Herring
Gull L4 2cy (argenteus),
November 28 2004, Amsterdam, the Netherlands (52.21N - 04.52E).
Picture Ruud Altenburg. |
Herring
Gull JXOS
2cy (argentatus), November 06 2004, Westkapelle, the
Netherlands (51.33N 03.25E). Picture Pim Wolf. |
Herring
Gull KP51 2cy (argentatus), November 11 2002, IJmuiden, the Netherlands
(52.27N 04.33E). |
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Herring
Gull 2cy (argentatus), November 22 2001, Westkapelle, the Netherlands (51.33N
03.25E).
With features of smithsonianus. |
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