Lesser Black-backed Gull 1cy A7 September 30 2012, Landfill VRSU de Colmenar Viejo, Madrid, Spain. Picture: Delfín González.
Ringed 1cy graellsii, ringed at Maasvlakte, in the Netherlands.
US: 1-25%, LS: 1-25%, TOT SCAPS: 1-25%. All coverts and tertials juvenile.
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