Herring Gull- Zilvermeeuw (argentatus & argenteus)

(last update: 30-9-2009)

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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 January
hg sub-ad February
hg sub-ad March
hg sub-ad April
hg sub-ad May
hg sub-ad June
hg sub-ad July
hg sub-ad August
hg sub-ad September
hg sub-ad October
hg sub-ad November
hg sub-ad December

hg ad January
hg ad February
hg ad March
hg ad April
hg ad May
hg ad June
hg ad July
hg ad August
hg ad September
hg ad October
hg ad November
hg ad December

Herring Gull (argenteus) YBRD adult, June 2014 - October 2017, IJmuiden, the Netherlands. 

Ringed as adult breeding Herring Gull on June 02 2014, at Forteiland, IJmuiden. Ringed by Fred Cottaar ringing team.

below: Herring Gull (argenteus) YBRD adult, October 18 2017, IJmuiden, the Netherlands.

P7/-. And for another year showing black markings on a central tail-feather; but less black, less black over the years.

below: Herring Gull (argenteus) YBRD adult, June 06 2016, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee.

With dark markings on R1.

below: Herring Gull (argenteus) YBRD adult, September 03 2015, IJmuiden, the Netherlands. 

Bird in complete moult: P6 fg, P7 at P2, P8 missing, P9-P10 still old. S1 growing, S2 missing. R1 dropped, therefore no black in tail.

below: Herring Gull (argenteus) YBRD adult, April 27 2015, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee.

With a new set flight-feathers, but dark markings on tail-feathers again.

below: Herring Gull (argenteus) YBRD adult, June 02 2014, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee.

With dark markings on tail-feathers, when trapped.