| Coordinators:Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
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   | Caspian Gull cachinnans  2|L 1CY-3CY,    2023-2025, the Netherlands & England. Picture: Fred Visscher, Thijs Horst, Mars Muusse, Andy Stoddart & Andy Hale.Tibia  G-2|L and metal NLA 5.623.856, ringed as  pullus Larus cachinnans on May 12 2023 at De Kreupel, Holland (5247.00 N 513.00 E). 
      Ringer  Leon Kelder. Recoveries:13-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
 14-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
 29-09-2023 Cromer (Strand), Norfolk, ENGELAND 5.255,00 N 118,00 E colourring read Andy Stoddart
 30-09-2023 Cromer (Strand), Norfolk, ENGELAND 5.255,00 N 118,00 E colourring read Andy Hale
 27-11-2023 Den Oever (Buitenhaven), Noord-Holland, NL 5.256,00 N 502,00 E colourring read Thijs Horst
 21-01-2024 Den Oever (Buitenhaven), Noord-Holland, NL 5.256,00 N 502,00 E colourring read T. Horst & M. Muusse
 28-01-2024 Den Oever (Buitenhaven), Noord-Holland, NL 5.256,00 N 502,00 E colourring read Leon Kelder
 25-02-2024 Den Oever (Buitenhaven), Noord-Holland, NL 5.256,00 N 502,00 E colourring read Leon Kelder
 04-03-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
 15-03-2024 Den Oever (Buitenhaven), Noord-Holland, NL 5.256,00 N 502,00 E colourring read René Beekvelt
 30-05-2024 Den Oever (Buitenhaven), Noord-Holland, NL 5.256,00 N 502,00 E colourring read Fred Visscher
 22-06-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
 29-06-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
 17-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
 18-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
 29-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
 04-08-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
 08-04-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
 below: Caspian Gull cachinnans  2|L 3CY,  April 08 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
 below: Caspian Gull cachinnans  2|L 2CY,  May 30 2024, Den Oever, the Netherlands. Picture: Fred Visscher.
 below: Caspian Gull cachinnans  2|L 2CY,  March 04 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
 
 below: Caspian Gull cachinnans  2|L 2CY,  January 21 2024, Den Oever, the Netherlands. Picture: Mars Muusse.
 
 
 below: Caspian Gull cachinnans  2|L 1CY,  November 27 2023, Den Oever, the Netherlands. Picture: Thijs Horst.
 below: Caspian Gull cachinnans  2|L 1CY,  September 30 2023, Cromer - Norfolk, England. Picture: Andy Hale.
 
 below: Caspian Gull cachinnans  2|L 1CY,  September 29 2023, Cromer - Norfolk, England. Picture: Andy Stoddart.
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