Herring Gull (argentatus & argenteus)
(last update: February 11, 2013)
Herring Gull argenteus NLA 6.166.442 1CY & 8CY, September 2010 & May-June 2017, IJmuiden - Katwijk, the Netherlands. Pictures: Maarten van Kleinwee & Mars Muusse.
Ringed metal Arnhem 6166442, ringed as pullus on June 27 2010 at Europoort (Tennesseehaven) - Rotterdam, The Netherlands (5158.00 N 405.00 E), by ringer Hans Keijser.
Herring Gull argenteus NLA 6.166.442 8CY, June 19 2017, Katwijk, the Netherlands.
Herring Gull argenteus NLA 6.166.442 8CY, May 10 2017, Katwijk, the Netherlands.
Some black on P4. P1 still present.
Herring Gull argenteus NLA 6.166.442 1CY, September 12 2010, IJmuiden, the Netherlands. Pictures: Maarten van Kleinwee.
First-calendar year (first cycle) European Herring Gull, moulting to winter plumage (first prebasic moult). The active scapular moult can be clearly seen in this invidual; the new second-generation scapulars with a cream base and dark markings contrast clearly with the dark-brown centered first-generation (juvenile) scapulars. Note also the white tips on the lower scapulars and the white notching on the tertials.