| 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
 Breeding species
 Hybrid scores
 Ring codes
 Future
 | Caspian Gull cachinnans  J|+ 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-J|+ and metal NLA 5.629.328, ringed as  pullus Larus cachinnans on May 24 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: |  
    | 24-5-2024 | ...5629328 | 1 | J|+ | Green | 5927 | 1 | - | 3 | IJsselmeer, Enkhuizen, De    Kreupel, eiland L. | ? | L12 |  
    | 7-6-2024 | ...5629328 | 4 | J|+ | Green | 5927 | 1 | - | 2 | IJsselmeer, Enkhuizen, De    Kreupel eiland L. | ? |  |  
    | 22-6-2024 | ...5629328 | 4 | J|+ | Green | 5927 | 1 | - | 0 | IJsselmeer, Enkhuizen, De    Kreupel eiland L. | ? |  |  
    | 24-5-2024 | ...5629329 | 1 | J|0 | Green | 5927 | 1 | - | 3 | IJsselmeer, Enkhuizen, De    Kreupel, eiland L. | ? | L12 |  22-6-2024 | ...5629329 | 4 | J|0 | Green | 5927 | 1 | - | 0 | IJsselmeer, Enkhuizen, De    Kreupel eiland L. | ? |  | 
    | 24-5-2024 | ...5629330 | 1 | J|1 | Green | 5927 | 1 | - | 3 | IJsselmeer, Enkhuizen, De    Kreupel, eiland L. | YES | L12 |  7-6-2024 | ...5629330 | 4 | J|1 | Green | 5927 | 1 | - | 2 | IJsselmeer, Enkhuizen, De    Kreupel eiland L. | 8 |  |  |