| Coordinators:Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
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 | Caspian Gull cachinnans M|0 adult, April 23 2025,  colony Lelystad, the Netherlands.
        
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            Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl |  Tibia  G-M|0 and metal NLA 6.254.552, ringed as  breeding adult  Larus cachinnans on April 23 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 |  
    | 23-4-2025 | G-M|0 | .6254552 | Nest 21 | PONT | M | >4CY | 470 | 1283 | 141,2 | 65,5 | 74,1 | 20,2 | 25B00543 / ACA25-9177 | 6 | Trapped by ringer. Breeder on 3    eggs. |    |