| Coordinators:Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
 Home Project InfoInternational trend
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 | Herring Gull argenteus  D:D 1CY, 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 M15 - 2025. 
        
        
        
        
        
        
        
        
        
        
        
        
          | Metal    ring | Colour ring | Date | Species | Age | Clutch size | Location | Nest code | Ringer | Head+Bill | Mass | Wing | Parents |  
          | NLA 5633786 | y-D:B | 22-5-2025 | Herring Gull | pullus | 3 eggs | the Netherlands, De Kreupel - eiland M. | M15 | Leon Kelder | 63,3 | 186,0 |  |  |  
          | NLA 5633787 | y-D:C | 22-5-2025 | Herring Gull | pullus | 3 eggs | the Netherlands, De Kreupel - eiland M. | M15 | Leon Kelder | 67,6 | 242,0 |  |  |  
          | NLA 5633788 | y-D:D | 22-5-2025 | Herring Gull | pullus | 3 eggs | the Netherlands, De Kreupel - eiland M. | M15 | Leon Kelder | 57,1 | 119,0 |  |  |  |