2cy Lesser Black-backed Gull with yellow bill – 20130528

Second-calendar year Lesser Black-backed Gull (Larus fuscus) with distinct yellow coloration in the bill and active moult in the wing coverts and primaries. Leiden, The Netherlands 28 May 2013.

2nd-Calendar year Lesser Black-backed Gull with yellow bill and active moult. Leiden, The Netherlands, 28 May 2013.

2nd-Calendar year Lesser Black-backed Gull with yellow bill and active wing moult. Leiden, The Netherlands, 28 May 2013.

2nd-Calendar year Lesser Black-backed Gull with yellow bill and active moult. Leiden, The Netherlands, 28 May 2013.

2nd-Calendar year Lesser Black-backed Gull with yellow bill and active wing moult. Leiden, The Netherlands, 28 May 2013.

2nd-Calendar year Lesser Black-backed Gull with yellow bill and active moult. With  3rd-calendar year Lesser Black-backed Gull in the background. Leiden, The Netherlands, 28 May 2013.

2nd-Calendar year Lesser Black-backed Gull with yellow bill and wing active moult. With 3rd-calendar year Lesser Black-backed Gull in the background. Leiden, The Netherlands, 28 May 2013.

2nd-Calendar year Lesser Black-backed Gull with yellow bill and active moult. With  adult Lesser Black-backed Gull in the background. Leiden, The Netherlands, 28 May 2013.

2nd-Calendar year Lesser Black-backed Gull with yellow bill and active wing moult. With adult Lesser Black-backed Gull in the background. Leiden, The Netherlands, 28 May 2013.

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