L. f. graellsii H851 May 03 2010, Landfill VRSU de Pinto, Madrid, Spain. Picture: Delfín González.
Ringed 2cy graellsii, ringed in N Germany in the Helgoland-Amrum colonies. These colonies fall in the transition zone between continental graellsii "Dutch intergades" and Scandinavian intermedius.
Ssapulars replaced. Tertials and wing-coverts juvenile, except maybe a single mc. Restricted post-juvenile moult in tertials and wing-coverts typical for graellsii.
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