| Coordinators:Jean-Michel Sauvage (France)
 Mars Muusse (the Netherlands)
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 | Herring Gull   A||S 2CY, January - March 2017, Scheveningen & Katwijk, the Netherlands.  Yellow tibia A||S and metal Arnhem NLA 6.178.521. Ringed as  1CY  on September  19 2016 at  Scheveningen, the Netherlands (5206.00 N; 417.00 E) by ringer Roland-Jan Buijs. Recoveries:29-9-2016 Den Haag (Zuiderpark), Zuid-Holland, NL 5.203,00 N 417,00 E colourring read Leo Snellink
 25-10-2016 Katwijk aan Zee (Binnenwatering), Zuid-Holland, NL 5.213,00 N 425,00 E colourring read Annelies Marijnis
 11-11-2016 Katwijk aan Zee (Binnenwatering), Zuid-Holland, NL 5.213,00 N 425,00 E colourring read Annelies Marijnis
 5-1-2017 Zandmotor (Strand), Zuid-Holland, NL 5.203,00 N 411,00 E colourring read Nick Peeters
 12-1-2017 Meijendel (Strand), Zuid-Holland, NL 5.208,00 N 419,00 E colourring read Bart Hoekstra
 14-1-2017 Meijendel (Strand), Zuid-Holland, NL 5.208,00 N 419,00 E colourring read Bart Hoekstra & Bas Verhoeven
 16-1-2017 Meijendel (Strand), Zuid-Holland, NL 5.208,00 N 419,00 E colourring read Ad van Benten
 18-1-2017 Meijendel (Strand), Zuid-Holland, NL 5.208,00 N 419,00 E colourring read Bart Hoekstra
 19-1-2017 Scheveningen (Strand), Zuid-Holland, NL 5.206,00 N 415,00 E colourring read Cornelis Fokker
 22-1-2017 Scheveningen (Strand), Zuid-Holland, NL 5.206,00 N 415,00 E colourring read Bas Verhoeven &  Marie-Jose Verbeeten
 24-1-2017 Scheveningen (Strand), Zuid-Holland, NL 5.206,00 N 415,00 E colourring read Cornelis Fokker &  Mars Muusse
 28-1-2017 Scheveningen (Strand), Zuid-Holland, NL 5.206,00 N 415,00 E colourring read Mars Muusse
 below: Herring Gull A||S 2CY, March 06 2017, Katwijk, the Netherlands. Still some  juvenile LLC. 
 
 below: Herring Gull A||S 2CY, January 28 2017, Scheveningen, the Netherlands. US=75-99%,  LS=50-75%, TOTSCAPS=75-99%. 
 
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