| Coordinators:Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
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 | Caspian Gull cachinnans  0|9 1CY,  colony De Kreupel, Holland.Tibia  G-0|9 and metal NLA 5.629.625, ringed as  pullus Larus cachinnans on May 12 2023 at De Kreupel, Holland (5247.00 N 513.00 E). 
      Ringer  Leon Kelder. Recoveries:04-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
 30-10-2024 Westkapelle (Zeedijk), Zeeland, NL 5.132,00 N 326,00 E colourring read Joop Scheijbeler
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