Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)
Larus cachinnans 1CY PLG DN-28060 November 19 2012, Deponie Pohlsche Heide - Minden, Germany (52°23'05N, 08°46'45E). Picture: Armin Deutsch.
Metal ring from Poland, PLG DN-28060, cachinnans ringed as pullus on May 10 2012 by Marcin Sidelnik, in Wyspa na Wisle, Kepa Nadbrzeska (= Island in the Vistula River, Kepa Nadbrzeska), near Warschau, Poland (52°01' N, 21°13' E). This colony holds a mixed population, with cachinnans dominating and argentatus, michahellis and even single fuscus breeding as well. Details on the composition of these breeding colonies, see LOCATIONS and RESULTS and ORIGIN & MIGRATION.
No coverts and no tertials replaced.