Lesser Black-backed Gull 2cy 3M March 04 2012, Landfill VRSU de Colmenar Viejo, Madrid, Spain. Picture: Delfín González.
Ringed 1cy graellsii, ringed in the Netherlands in 2011.
US: 100%, LS: 100%, TOT SCAPS: 100%. All coverts and tertials juvenile. Probably, several upper scaps already 3rd gen.
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