| 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
 Food resources
 Nonbreeding season
 Breeding species
 Hybrid scores
 Ring codes
 Future
 | Caspian Gull cachinnans C|8 1CY, St.Ouen's Bay - Jersey, England. Picture: Romano da Costa.
        
          | You can participate in this project too! 
            Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl |  Tibia  G-C|8 and metal NLA 5.641.967, ringed as  pullus Larus cachinnans on June 18 2025 at  IJburg - Amsterdam, the Netherlands. Ringed by Roland-Jan Buijs ringing team (Mars Muusse / Thijs Horst / Fred Cottaar).   Recoveries:12-08-2025 St.Ouen's Bay (Strand), Jersey, ENGELAND 4.920,00 N 222,00 W colourring read Romano da Costa
 Data for this nest in 2025: 
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
          | date | darvic | metal | nest | species | sexe | age | wing | mass | head+ bill | bill | gonys | barcode | comments |  
          | 18-6-2025 | G-C|8 | .5641967 | IJburg, Buiteneiland | PONT |  | pullus | 100 | 555 |  |  |  |  | ringed pullus |  
          |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  Tibia ring G-C|8 was used for a pullus Larus cachinnans on May 02 2024 in nest n-F|8-2024 at Lelystad. That bird was found dead on June 18 2024 in colony Lelystad. Ring used again in 2025. below: Caspian Gull cachinnans C|8 1CY, St.Ouen's Bay - Jersey, England. Picture: Romano da Costa.
 |