| Coordinators:Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
 Home Project InfoInternational trend
 National trend
 Site characteristics
 Breeding biology
 Fecundity
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 Nonbreeding season
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 Ring codes
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   | Caspian Gull cachinnans  0|H 2CY, January 28 2024, Finistère, France. Picture: Stéphane Guerin.Tibia  G-0|H and metal NLA 5.629.633, ringed as  pullus Larus cachinnans on May 12 2023 at De Kreupel, Holland (5247.00 N 513.00 E). 
      Ringer  Leon Kelder. Recoveries:23-06-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
 28-01-2024 Plogoff (Anse du Loc'h), Finistère, FRANKRIJK 4.801,00 N 438,00 W colourring read Stéphane Guerin
 18-08-2024 Markermeer (Marker Wadden), Flevoland, NL 5.235,00 N 522,00 E colourring read Maarten Hotting
 below: Caspian Gull cachinnans  0|H 2CY, January 28 2024, Finistère, France. Picture: Stéphane Guerin.
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