Lesser Black-backed Gull 2cy RN3N January 13 2013, Landfill VRSU de Colmenar Viejo, Madrid, Spain. Picture: Delfín González.
Ringed 2cy graellsii, ringed in France (île de Ré, project run by Julien Gernigon's; white rings with code of R:A1A type on graellsii, michahellis and argenteus).
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