| 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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   | Caspian Gull cachinnans  1|V 1CY-2CY,  August 2023 - July 2024,  the Netherlands, France & Spain. Picture: Rémi Jugieux, Thijs Horst & Ernesto Reyes Lara.Tibia  G-1|V and metal NLA 5.623.829, ringed as  pullus Larus cachinnans on May 12 2023 at De Kreupel, Holland (5247.00 N 513.00 E). 
      Ringer  Leon Kelder. Recoveries:03-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
 02-08-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 22-12-2023 Vitoria-Gasteiz (Vuilstort), Alava, SPANJE 4.248,00 N 241,00 W colourring read Ernesto Reyes Lara
 10-07-2024 Guitrancourt (Vuilstort), Yvelines, FRANKRIJK 4.900,00 N 147,00 E colourring read Rémi Jugieux
 below: Caspian Gull cachinnans  1|V 1CY,  July 10 2024, Guitrancourt, France. Picture: Rémi Jugieux.
 below: Caspian Gull cachinnans  1|V 1CY,  December 22  2023, Vitoria-Gasteiz - Alava, Spain. Picture: Ernesto Reyes Lara.
 below: Caspian Gull cachinnans  1|V 1CY,  August 02 2023, Almere, the Netherlands. Picture: Thijs Horst.
 
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