Lesser Black-backed Gull (graellsii & intermedius)
Lesser Black-backed Gull graellsii K.XAX 4CY & 6CY, June 2013 & April 2015, Noordwijk & Maasvlakte, the Netherlands. Picture: Merijn Loeve & Mars Muusse.
Bird ringed as pullus on 15 July 2010 at Kelderhuispolder, Texel, the Netherlands; ringed as Lesser Black-backed Gull (Larus fuscus graellsii - Dutch integrade).
Lesser Black-backed Gull graellsii K.XAX 4CY, June 24 2013, Noordwijk, the Netherlands. Picture: Mars Muusse.
Sub-adult LBBG, 4CY bird. Note extensive pattern on secondaries, and large dark markings on greater primary coverts. Small mirror on P10. Distinct adult-like pattern on P3-P5 indicate this bird is older than 3CY. This bird is now in its complete moult: P1-P2 missing/growing, P3-P10 old.
Lesser Black-backed Gull graellsii K.XAX 6CY, April 07 2015, Maasvlakte, the Netherlands. Picture: Merijn Loeve.
Ringed as pullus in 2010 at island Texel, now 6CY.