| Coordinator: Albert de Jong
 Merijn Loeve
 Roland-Jan Buijs
 Thijs Horst
 Leon Kelder
 Mars Muusse
 Home Project InfoInternational trend
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 | Caspian  Gull cachinnans P:2LK 4CY,   April 08 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.Yellow P:2LK and metal PLG DN45482, ringed as pullus "Caspian Gull colony, Larus cachinnans kolonia [LARCNK]" on June 12 2002 at Goplo - Koscieszki, Poland.       
        
          
            | 12/06/2022 |  | ROŚCINNO: 
              Maciej Gierszewski & 
              Adam Loręcki |  
            | 31/03/2023 | Almere: de Vaart, 
              NETHERLANDS (FLEVOLAND) | Eric Roeland |  
            | 07/04/2023 | Almere: de Vaart, 
              NETHERLANDS (FLEVOLAND) | Eric Roeland |  
            | 16/04/2023 | Almere: de Vaart, 
              NETHERLANDS (FLEVOLAND) | Eric Roeland |  
            | 21/04/2023 | Almere: de Vaart, 
              NETHERLANDS (FLEVOLAND) | Eric Roeland |  
            | 29/04/2023 | Almere: de Vaart, 
              NETHERLANDS (FLEVOLAND) | Eric Roeland |  
            | 02/05/2023 | Almere de Vaart, 
              NETHERLANDS (FLEVOLAND) | thijs horst & 
              Mars Muusse |  
            | 04/05/2023 | Almere de Vaart, 
              NETHERLANDS (FLEVOLAND) | thijs horst & 
              Mars Muusse |  
            | 05/05/2023 | Almere de Vaart, 
              NETHERLANDS (FLEVOLAND) | thijs horst & 
              Mars Muusse |  
            | 05/05/2023 | Almere: de Vaart, 
              NETHERLANDS (FLEVOLAND) | Eric Roeland |  
            | 06/05/2023 | Almere: de Vaart, 
              NETHERLANDS (FLEVOLAND) | Eric Roeland |  
            | 13/05/2023 | Markermeer, Marker Wadden, 
              NETHERLANDS (FLEVOLAND) | Maarten Hotting |  
            | 04/11/2023 | Katwijk, 
              NETHERLANDS (ZUID-HOLLAND) | Annelies Marijnis |  
            | 16/01/2024 | Almere de Vaart, 
              NETHERLANDS (FLEVOLAND) | thijs horst & 
              Mars Muusse |  
            | 30/07/2024 | De Kreupel, 
              NETHERLANDS (FLEVOLAND) | thijs horst & 
              Jeroen van Assema |  
            | 05/08/2024 | De Kreupel, 
              NETHERLANDS (FLEVOLAND) | thijs horst, 
              Mars Muusse & 
              Theo Muusse |  
            | 26/11/2024 | Vert-le-Grand, 
              FRANCE (SEINE-ET-OISE ET SEINE) | R. J. |  
            | 08/04/2025 | De Kreupel, 
              NETHERLANDS (FLEVOLAND) | thijs horst & 
              Mars Muusse |  below: Caspian  Gull cachinnans P:2LK 4CY,   April 08 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
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