Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)
Larus cachinnans hybrid 1CY 21P3 August 14 2007, Oostende, Belgium. Picture: Francois Roland.
Green 21P3 and metal DN21261. Bird ringed in a mixed colony; ringed as pullus on May 10 2007 at Wisla Wloclawek Tama, Poland. One of the parents most probably argentatus.
Few upper scapulars replaced. Several characters of Herring Gull, including pattern on head, piano-key pattern on greater coverts, vermiculated pattern on outer greater coverts and vermiculation at tertials.