Lesser Black-backed Gull 3CY, May 09 2014, Katwijk, the Netherlands.
Classic 3CY graellsii type bird. All flight feathers 2nd generation, except for R6 right. Most wing-coverts still 2nd generation type, no obvious replaced coverts in the partial autumn moult. Grey scapulars create "saddle", contrasting with brown coverts. Complete moult not started: P1-P10 old 2nd generation.
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