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

(last update: January 01, 2023)

Lesser Black-backed Gull (graellsii) Y.ADY 1CY-2CY, August 2008 - February 2009, the Netherlands & Spain. Picture: Mars Muusse & Gabriel Martín.

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

below: Lesser Black-backed Gull (graellsii) Y.ADY 1CY, August 13 2008, IJmuiden, the Netherlands. Picture: Mars Muusse.

Scapular Moult Score in August 2008: Upper Scapulars (us) few missing on 13/08, then 0-25% 2nd generation on 20/08; Lower Scapulars (ls) 0% 2nd gen; total scapular score: 0-25% 2nd generation.
Prims & Secs & Recs & tertials all juv. 
Coverts: gc 1-> juv, mc 1-3 juv, mc 4 old 2g like (diff pattern juv?) mc5-> juv, llc 1-> juv, lc juv (right side: 3x diff pattern).

below: Lesser Black-backed Gull (graellsii) Y.ADY 1CY, August 20 2008, IJmuiden, the Netherlands. Picture: Mars Muusse.

below: Lesser Black-backed Gull (graellsii) Y.ADY 1CY, September 08 2008 Amsterdam, the Netherlands. Picture: Ruud Altenburg.

below: Lesser Black-backed Gull (graellsii) Y.ADY 2CY (&  K.HAV), February 28 2009, Ciudad Real, Spain. Picture: Gabriel Martín.

KHAV was ringed at Vlieland colony, the Netherlands, graellsii "Dutch intergrade".

Scapulars replaced. Wing-coverts and tertials still juvenile. 
First image: KHAV
Lower images: KHAV left green together with YADY right green from IJmuiden. Moult scores similar.