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| Coordinator: Greg Neubauer Marcin Przymencki Albert de Jong Mars Muusse cachinnans plumages | Larus cachinnans 2CY 6P17 May 07 2015, Simrishamn, Sweden. Picture: Jörgen Bernsmo. Red 6P17 and metal GDAŃSK  DN 30614. Ringed as pullus on May  27 2014 at Caspian Gull colony (Larus cachinnans kolonia)  at J.Wytyckie (Lake Wytyckie), Wytyczno, Urszulin, (eastern) POLAND (51°25'48.0''N 23°13'12.0''E).  
 
 
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