2CY Lesser Black-backed Gull Green YBSJ – 20150802

Images of 2nd-calendar year Black-backed Gull Larus fuscus graellsii (Dutch intergrade) Green YBSJ, taken in the harbour of IJmuiden, the Netherlands, 2 August 2015.

It is in active moult with P1 to P5 fully replaced and P6 nearly fully grown. A moult gap can also be seen in the secondaries and in the tail.

G-YBSJ-20150802-7

-GYBSJ-20150802-2

 

G-YBSJ-20150802-3

G-YBSJ-20150802-4

G-YBSJ-20150802-6

G-YBSJ-20150802-5

July 2014

Green YBSJ as a juvenile while being ringed in the gull colony of IJmuiden (Forteiland), close to where the above photos were taken.

G[Y.BSJ]-20140707-1

G[Y.BSJ]-20140707-2

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