| Coordinators:Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
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 | Caspian Gull cachinnans R|4 1CY, June 09 2025,  colony Lelystad, the Netherlands.
        
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            Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl |  Tibia  G-R|4 and metal NLA 5.641.930, ringed as  pullus Larus cachinnans on June 09 2025 at  Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team (Mars Muusse / Thijs Horst / Fred Cottaar).   Recoveries:30-06-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
 09-07-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
 04-08-2025 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 06-09-2025 Lelystad (Oostvaardersdijk), Flevoland, NL 5.228,00 N 519,00 E colourring read Folko van den Brink
 Data for this nest in 2025: 
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
          | date | darvic | metal | nest | species | sexe | age | wing | mass | head+ bill | bill | gonys | barcode | comments |  
          | 9-6-2025 | G-R|4 | .5641930 | 227/blauwe touw | PONT |  | pullus |  | 664 |  |  |  |  | Ringed pullus |  |