Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)
Larus cachinnans x argentatus hybrid adult female S.S May 21-25 2013, Amerongen sluizen complex, The Netherlands. Picture: PieterGeert Gelderblom;
Female cachinnans x argentatus hybrid adult, ringed previous XKAC. Green XKAC ringed female pullus June 10 2003 at Sedlitzer See, Germany (5133.00N 1417.00E). Autumn 2008 & 2010 & 2012 bird recorded at Waddensea the Netherlands.
Orange-yellow orbital ring and gape. Yellowish pink legs. Strong bill with obvious gonys angle. Much speckling in iris. Broken band on P5, large mirrors on P9 and P10.
Measurements indicate this female Blue SS is probably a Caspian x Herring Gull. Below are some pictures of her partner, a very large male Yellow-legged Gull michahellis, now in 2013 ringed at the nest tibia blue JN. Ringed by Roland-Jan Buijs, measurements again by Jeroen Nagtegaal, and images by PieterGeert Gelderblom.