| Coordinators:Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
 Home Project InfoInternational trend
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 Future
 | Caspian Gull cachinnans  H|5 1CY, May  2024, colony De Kreupel, the Netherlands.      
        
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            Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl |  Tibia  G-H|5 and metal NLA 5.629.298, ringed as  pullus Larus cachinnans on May 17 2024 at De Kreupel, Holland (5247.00 N 513.00 E). 
        Ringer  Leon Kelder.  Recoveries:19-05-2025 Jisp (Het Zwet), Noord-Holland, NL 5.230,00 N 449,00 E colourring read Kees Floris
 14-07-2025 Oostknollendam (De Marken), Noord-Holland, NL 5.230,00 N 449,00 E colourring read Kees Floris
 23-07-2025 Oostknollendam (De Marken), Noord-Holland, NL 5.230,00 N 449,00 E colourring read Jurgen Rotteveel
 11-09-2025 Maasvlakte 2 (Yangtzekanaal), Zuid-Holland, NL 5.158,00 N 404,00 E colourring read Roland-Jan Buijs
 Nest data 2024: 
  
  
  
  
  
  
  
  
  
  
  
  
  
    | Date trapped: | Metal code | ... | Tibia: | Colour: | Species: | Age: | Status | Clutch size: | Location: | Fledged: | Nest code: |  
    | 17-5-2024 | ...5629298 | 1 | H|5 | Green | 5927 | 1 | - | 3 | IJsselmeer, Enkhuizen, De    Kreupel, eiland H. | ? | H6 |  
    | 17-5-2024 | ...5629299 | 1 | H|6 | Green | 5927 | 1 | - | 3 | IJsselmeer, Enkhuizen, De    Kreupel, eiland H. | YES | H6 |  
    | 17-5-2024 | ...5629300 | 1 | H|7 | Green | 5927 | 1 | - | 3 | IJsselmeer, Enkhuizen, De    Kreupel, eiland H. | YES | H6 |  |