| Coordinators:Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
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 | Caspian Gull cachinnans R|5 1CY, June 13 2025,  Markermeer (Marker Wadden), the Netherlands.
        
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            Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl |  Tibia  G-R|5 and metal NLA 5.641.067, ringed as  pullus Larus cachinnans on June 13 2025 at  Marker Wadden, the Netherlands. Ringed by Roland-Jan Buijs ringing team (Mars Muusse / Thijs Horst / Fred Cottaar).   Recoveries:11-07-2025 Markermeer (Marker Wadden), Flevoland, NL 5.235,00 N 522,00 E colourring read Thijs Horst
 Data for this nest in 2025: 
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
          | date | darvic | metal | nest | species | sexe | age | wing | mass | head+ bill | bill | gonys | barcode | comments |  
          | 13-6-2025 | G-R|5 | .5641067 | Marker Wadden | PONT |  | pullus |  | 555 |  |  |  |  | Parent probably r-2F |  |