| Coordinators:Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
 Home Project InfoInternational trend
 National trend
 Site characteristics
 Breeding biology
 Fecundity
 Food resources
 Nonbreeding season
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 Hybrid scores
 Ring codes
 Future
 | Caspian Gull cachinnans  5|K 1CY,     May 2024, 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 |  Tibia  G-5|K and metal NLA 5.629.134, ringed as  pullus Larus cachinnans on May 09 2024 at De Kreupel, Holland (5247.00 N 513.00 E). 
        Ringer  Leon Kelder.  Recoveries:---
 Nest data 2024: 
  
  
  
  
  
  
  
  
  
  
  
  
  
    | Date trapped: | Metal code | ... | Tibia: | Colour: | Species: | Age: | Status | Clutch size: | Location: | Fledged: | Nest code: |  
    | 9-5-2024 | ...5629134 | 1 | 5|K | Green | 5927 | 1 | - | 2 | IJsselmeer, Enkhuizen, De    Kreupel, eiland N. | ? | N1 |  
    | 9-5-2024 | ...5629135 | 1 | 5|L | Green | 5927 | 1 | - | 2 | IJsselmeer, Enkhuizen, De    Kreupel, eiland N. | YES | N1 |  
    | 17-5-2024 | ...5629255 | 1 | E|X | Green | 5927 | 1 | - | 1 | IJsselmeer, Enkhuizen, De    Kreupel, eiland N. | YES | N1 |  |