Gull Research Organisation

**Herring Gull (argentatus & argenteus)**

(last update: February 11, 2013)

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

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 (argentatus) RUM ES14360 4CY-7CY, July 2015 - January 2018, Brouwersdam, the Netherlands. Picture: Maarten Sluijter, Ted van der Knaap, Merijn Loeve, Martijn Bot & Mars Muusse.

below: Umba town, about 20 KM east of the breeding island Krestovyy where RUM ES14360 hatched. Picture: Mikhail Aplesnin.

Below: looking south over Umba and the Gulf of Kandalaksha. This gulf is a nature reserve where bulk of the ringed Herring Gulls and Great Black-backed Gulls, which we record in Western Europe, breed and hatch. Ringing activities are concentrated on the many small breeding islands scattered along the coastline.

DATA FOR RUM ES14360:

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RING NUMBER Moskwa ES-14 360
SPECIES Larus argentatus AGE pull
RINGING DATE 20.06.2012
PROVINCE Russia, Murmansk O. RINGING PLACE Kandalakshskiy Nature Reserve, Porya guba, isl. Krestovyy (COORDINATES 66.40 N 33.55 E).
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FINDING DATE 28.07.2015
PROVINCE Netherlands, Zeeland FINDING PLACE Brouwersdam COORDINATES 51.45 N 3.50 E
FINDING Larus argentatus, 4 y
DETAILS sight record

COMMENT
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DISTANCE 2350 km DIRECTION 226 degrees ELAPSED TIME 1133 days
_______________________________________________________________________
Previous records:
13,17.02.2015 Netherlands, Zeeland, Brouwersdam 51.45 N 3.50 E
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below: Herring Gull (argentatus) RUM ES14360 4CY, July 28 2015, Brouwersdam, the Netherlands.

Spending the summer and moult period as sub-adult in the Netherlands.

Adult-like flight feathers with some immature markings. Obviously darker on upperparts than local argenteus. Complete moult: P1-P6 new 4th gen, P9-P10 old 3rd gen. Old 3rd gen secondaries with bold white tips. Speckled iris.

below: Herring Gull (argentatus) RUM ES14360 4CY, September 02 2015, Brouwersdam, the Netherlands. Picture: Ted van der Knaap.

P8 fully grown, no old primaries left.

below: Herring Gull (argentatus) RUM ES14360 4CY, December 23 2015, Brouwersdam, the Netherlands. Picture: Martijn Bot.

Full band on P5.

below: Herring Gull (argentatus) RUM ES14360 5CY, December 11 2016, Brouwersdam, the Netherlands. Picture: Merijn Loeve.

Broken band on P5.