Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

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

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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

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 argenteus NLA 5.352.687 13CY, 16CY & 17CY, November 2013,May 2016 & September-October 2017, Katwijk aan Zee, the Netherlands.

Ringed as pullus on July 02 2001 at Halkade, IJmuiden, the Netherlands.

below: Herring Gull argenteus NLA 5.352.687 17CY, October 27 2017, Katwijk, the Netherlands.

P7/-.

below: Herring Gull argenteus NLA 5.352.687 17CY, September 17 2017, Katwijk, the Netherlands.

P5/P8. Old tail.

below: Herring Gull argenteus NLA 5.352.687 17CY, September 06 2017, Katwijk, the Netherlands.

With michahellis from Switzerland.

below: Herring Gull argenteus NLA 5.352.687 17CY, August 21 2017, Katwijk, the Netherlands.

below: Herring Gull argenteus NLA 5.352.687 17CY, July 20 2017, Katwijk, the Netherlands.

P1-P10 still present.

below: Herring Gull argenteus NLA 5.352.687 17CY, April 23 2017, Katwijk, the Netherlands.

below: Herring Gull argenteus NLA 5.352.687 17CY, March 17 2017, Katwijk, the Netherlands.

below: Herring Gull argenteus NLA 5.352.687 17CY, March 02 2017, Katwijk, the Netherlands.

Again weak condition of outer primaries (P7 right, P8 left) and the irregular trailing line. Note also fault bars over scaps and coverts. Bird is getting old...

below: Herring Gull argenteus NLA 5.352.687 16CY, November 16 2016, Katwijk, the Netherlands.

Still in complete moult. P7 fully grown.

below: Herring Gull argenteus NLA 5.352.687 16CY, October 27 2016, Katwijk aan Zee, the Netherlands.

below: Herring Gull argenteus NLA 5.352.687 16CY, May 24 2016, Katwijk aan Zee, the Netherlands.

P3-P10 old, P1-P2 dropped.

below: Herring Gull argenteus NLA 5.352.687 13CY, November 26 2013, Katwijk aan Zee, the Netherlands.

Some black on bill.