| Coordinators:Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
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 | Caspian Gull cachinnans N|B adult, April 28 2025,  colony Lelystad, the Netherlands.
        
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            Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl |  Tibia  G-N|B and metal NLA 5.641.011, ringed as  breeding adult Larus cachinnans on April 28 2025 at  Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team (Mars Muusse / Thijs Horst / Fred Cottaar).   Recoveries:=
 Data for this nest in 2025: 
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
          | date | darvic | metal | nest | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | barcode | greyscale | comments |  28-4-2025 | G-N|B | .5641011 | 22 zwarte    schoen | PONT | F | >4CY | 453 | 901 | 121,1 | 56,1 | 67,9 | 17,2 | 25B00545 | 7 | Trapped by    ringer. Breeder on 3 eggs. |  |