IJmuiden Project - Fred Cottaar, José Verbeek, Maarten van Kleinwee & Mars Muusse

(last update: January 01, 2023)

Herring Gull (argenteus) Y.AFJ 1CY, August 2008 - August 2016, IJmuiden, the Netherlands. Picture: Mars Muusse & Maaarten van Kleinwee.

Ringed as pullus in breeding season 2008 at Forteiland, IJmuiden. Ringed by Fred Cottaar ringing team.

below: Herring Gull (argenteus) Y.AFJ 9CY, August 29 2016, IJmuiden, the Netherlands. Picture: Maaarten van Kleinwee.

Ringed as a pullus in the IJmuiden Forteiland colony 30 June 2008. It died in its territory, 8 years old.

below: Herring Gull (argenteus) Y.AFJ 9CY, July 01 2016, IJmuiden, the Netherlands. Picture: Maaarten van Kleinwee.

below: Herring Gull (argenteus) Y.AFJ 9CY, April 25 2016, IJmuiden, the Netherlands. Picture: Maaarten van Kleinwee.

below: Herring Gull (argenteus) Y.AFJ 8CY, May 29 2015, IJmuiden, the Netherlands. Picture: Maaarten van Kleinwee.

below: Herring Gull (argenteus) Y.AFJ 3CY, October 27 2010, Westkapelle, the Netherlands.

P10 fully grown. Only limted partial autumn moult, with upper tertials, inner gc, few mc included.

below: Herring Gull (argenteus) Y.AFJ 1CY, August 23 2008, IJmuiden, the Netherlands. Picture: Mars Muusse.

below: Herring Gull (argenteus) Y.AFJ 1CY, August 20 2008, IJmuiden, the Netherlands. Picture: Mars Muusse.

Scapular Moult Score: Upper Scapulars (us) 0-25% 2nd generation in the uus; Lower Scapulars (ls) 0% 2nd gen; total scapular score: 0-25% 2nd generation.

below: Herring Gull (argenteus) Y.AFJ 1CY, June 30 2008, IJmuiden, the Netherlands. Picture: Maaarten van Kleinwee.

Here it is as a juvenile while it was being ringed in June 2008.