| 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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 Hybrid scores
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   | Caspian Gull cachinnans  5|0 1CY,  November - December  2023, Almere - De Vaart, the Netherlands. Picture Mars Muusse & Thijs Horst.Tibia  G-5|0 and metal NLA 5.629.660, ringed as  pullus Larus cachinnans on June 23 2023 at De Kreupel, Holland (5247.00 N 513.00 E). 
      Ringer  Leon Kelder. Recoveries:30-06-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E captured by ringer Leon Kelder
 29-11-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 01-12-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 below: Caspian Gull cachinnans  5|0 1CY,   December 01 2023, Almere - De Vaart, the Netherlands. Picture Mars Muusse.
 below: Caspian Gull cachinnans  5|0 1CY,  November 29 2023, Almere, the Netherlands. Picture: Thijs Horst.
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