| Coordinators:Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
 Home Project InfoInternational trend
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 | Caspian Gull cachinnans  E|G 1CY, April-May 2025, colony De Kreupel, the Netherlands.
        
          | You can participate in this project too! 
            Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl |  Data for nest P5 - 2025. 
        
        
        
        
        
        
        
        
        
        
        
        
          | Metal    ring | Colour ring | Date | Species | Age | Clutch size | Location | Nest code | Ringer | Head+Bill | Mass | Wing | Parents |  
          | NLA 5632577 |  | 25-4-2025 | Caspian Gull | pullus | 3 eggs | the Netherlands, De Kreupel -  eiland P. | P5 | Leon Kelder | 53,3 | 71,0 |  |  |  
          | NLA 5632578 |  | 25-4-2025 | Caspian Gull | pullus | 3 eggs | the Netherlands, De Kreupel -     eiland P. | P5 | Leon Kelder | 49,5 | 71,0 |  |  |  
          | NLA 5632578 | g-E|G | 02-5-2025 | Caspian Gull | pullus | 3 eggs | the Netherlands, De Kreupel -     eiland P. | P5 | Leon Kelder | 66,6 | 190,0 |  |  |  
          | NLA 5632578 | g-E|G | 16-5-2025 | Caspian Gull | pullus | -- | the Netherlands, De Kreupel - eiland P. | P5 | Leon Kelder |  |  |  |  |  
          | NLA 5632579 |  | 25-4-2025 | Caspian Gull | pullus | 3 eggs | the Netherlands, De Kreupel -     eiland P. | P5 | Leon Kelder | 54,4 | 93,0 |  |  |  
          | NLA 5632579 |  | 30-5-2025 | Caspian Gull | pullus | -- | the Netherlands, De Kreupel - eiland P. | P5 | Leon Kelder |  |  |  |    |