Lesser Black-backed Gull 2CY, May 09 2014, Katwijk, the Netherlands.
2CY graellsii type bird, slightly advanced. All flight feathers still juvenile, except for R3 right. Most wing-coverts still juvenile, but several inner coverts included in post-juvenile moult. Few upper scapulars greyish, 3rd generation. Note pale iris. Complete moult not started: P1-P10 old juvenile.
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