Coordinator: 
      Albert de Jong 
Merijn Loeve 
Roland-Jan Buijs 
Thijs Horst 
Leon Kelder 
      Mars Muusse
      Home 
      Project Info 
        International trend 
        National trend 
         Site characteristics 
         Breeding biology 
         Fecundity 
        Food resources 
         Nonbreeding season 
         Breeding species 
        Hybrid scores 
        Ring codes  
        Future 
      Nests at De Kreupel 2020 
        nest  r-02P4 20 
        nest y-X804 20 
        nest D01 20 
        nest D02 20 
        nest D03 20 
        nest L01 20 
        nest L02 20 
        nest L03 20 
        nest M02 20 
      Nests at De Kreupel 2021 
        nest  r-02P4 20 
        nest w-201U 21 
        nest g-XLHD 21 
        nest r-KA 21 
        nest r-KB 21 
        nest r-KC 21 
        nest r-KD 21 
        nest r-KE 21 
        nest r-KF 21 
        nest r-KH 21 
        nest r-KJ 21 
        nest r-KK 21 
        nest A01 21 
        nest C03 21 
        nest C04 21 
        nest C06 21 
        nest D01 21 
        nest D03 21 
        nest D05 21 
        nest D06 21 
        nest D07 21 
        nest D08 21 
        nest E01 21 
        nest H01 21 
        nest L01 21 
        nest L02 21 
        nest L05 21 
        nest L06 21 
        nest L07 21 
        nest M01 21 
        nest M04 21 
        nest M06 21 
        nest Q01 21 
       | 
    Caspian Gull cachinnans B.A 1CY, June 11 2021, De Kreupel  - L, the Netherlands. Picture: Leon Kelder. 
      Red  tibia  ring r[B.A], ringed as pullus Larus cachinnans on June 11 2021 at nest L07 21 in colony De Kreupel, the Netherlands.  
      ID is uncertain: both parents are unknown.       
      Dark funk bird. 
        
        
        
        
        
        
        
        
        
        
        
        
        
        
          | Date: | 
          details: | 
            | 
            | 
            | 
            | 
            | 
         
        
           | 
           | 
           | 
           | 
           | 
           | 
           | 
         
        
          | 11-6-2021 | 
          2 pulli in nest. | 
          metal: | 
          tibia: | 
          mass (gr): | 
          head + bill: | 
          wing: | 
         
        
           | 
          Prey: Roach 2x. | 
          NLA 5.556.784 | 
          Red B.A | 
          892 | 
          108.8 | 
          216.5 | 
         
        
           | 
          https://waarneming.nl/observation/216987781/ | 
          NLA 5.556.785 | 
          Red B.B | 
          900 | 
          104.4 | 
          185.5 | 
         
        
           | 
            | 
            | 
            | 
            | 
           | 
            | 
         
        
          | 25-6-2021 | 
          1  chick outside nest. | 
          metal: | 
          tibia: | 
          mass (gr): | 
          head + bill: | 
          wing: | 
         
        
          |   | 
            | 
          NLA 5.556.785 | 
          Red B.B | 
          1204 | 
          122.7 | 
          316.0 | 
         
        
           | 
           | 
           | 
           | 
           | 
           | 
           | 
         
        
           | 
           | 
           | 
           | 
           | 
           | 
           | 
         
        
           | 
           | 
           | 
           | 
           | 
           | 
           | 
         
        
           | 
           | 
           | 
           | 
           | 
           | 
           | 
         
        
           | 
           | 
           | 
           | 
           | 
           | 
           | 
         
        
           | 
           | 
           | 
           | 
           | 
           | 
           | 
         
        |