| Coordinator: Albert de Jong
 Merijn Loeve
 Roland-Jan Buijs
 Thijs Horst
 Leon Kelder
 Mars Muusse
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 |  Caspian Gull cachinnans C.R  1CY-4CY,   2022-2025,  the Netherlands &  England. Picture: Ian Bartlett, Brian Small Jeff Higgott, Eric Roeland, Thijs Horst &  Mars Muusse.Red  tibia  ring r[C.R] and metal NLA 5.625.066, ringed as pullus Larus cachinnans at nest 227 on May 09 2022 in colony Lelystad, the Netherlands. Ringer: Roland-Jan Buijs.ID certain in 2022: both immature cachinnans, one is 4CY male and one is 5CY female.
 Recoveries:17-05-2022 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E captured by ringer Albert de Jong
 15-08-2022 Southwold (Strand), Suffolk, ENGELAND 5.219,00 N 141,00 E colourring read Brian Small
 16-08-2022 Southwold (Strand), Suffolk, ENGELAND 5.219,00 N 141,00 E colourring read Brian Small
 19-08-2022 Southwold (Strand), Suffolk, ENGELAND 5.219,00 N 141,00 E colourring read Brian Small
 27-08-2022 Walberswick (Strand), Suffolk, ENGELAND 5.218,00 N 140,00 E colourring read Jeff Higgott
 06-09-2022 Cotesbach (Vuilstort), Leicestershire, ENGELAND 5.225,00 N 112,00 W colourring read Dale Green & Ian Bartlett
 07-09-2022 Cotesbach (Vuilstort), Leicestershire, ENGELAND 5.225,00 N 112,00 W colourring read Dale Green
 08-09-2022 Cotesbach (Vuilstort), Leicestershire, ENGELAND 5.225,00 N 112,00 W colourring read Carl Baggott
 28-03-2023 Oosterend (Polder), Terschelling, NL 5.324,00 N 522,00 E colourring read Job ten Horn & Suse Kühn
 31-03-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 01-04-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Jan Zorgdrager
 02-04-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 07-04-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 15-04-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 20-04-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 21-04-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 02-05-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 04-05-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 06-06-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 08-06-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Mark Zevenbergen
 20-06-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 17-07-2023 Almere (Dashorstdijk), Flevoland, NL 5.225,00 N 512,00 E colourring read Thijs Horst
 23-07-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 30-07-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 04-08-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 05-08-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 06-08-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 08-08-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 09-08-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 11-08-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Jan Zorgdrager
 16-03-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 23-03-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 05-04-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Jan Zorgdrager
 09-05-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 01-06-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 03-06-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 13-06-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 16-06-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 19-06-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 12-04-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
 08-07-2025 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
 09-07-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
 Visits and data for nest 227-2022. 
        
        
        
        
        
        
          | date: | egg no: | width (mm): | length (mm): | volume (cm3): |  |  
          | 29-04-2022 | A | 48,2 | 69,3 | -- | float - 4 mm |  
          |  | B | 48,2 | 67,6 | -- | float - 4 mm |  
          |  |  |  | sum nest: | -- |  |  
          |  | 4CY is breeding. |  |  |  
          |  |  |  |  |  |  |  
          | 04-05-2022 | 4CY at nest. |  
          |  |  |  |  |  |  |  
          | 09-05-2022 | Loads of fish in nest. Smelly. |  
          |  | 2 pulli. |  
          |  | NLA 5625065 | r-C.P |  
          |  | NLA 5625066 | r-C.R | Eventually, 2 chicks fledged in 2022. |  
          |  |  |  |  |  |  |  
          |  |  |  |  |  |  |  below: Caspian Gull cachinnans C.R 4CY,   April 12 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst..JPG)
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 below: Caspian Gull cachinnans C.R 4CY,   March 21 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst..JPG)
 
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 below: Caspian Gull cachinnans C.R 3CY, June 13 2024, Almere - De Vaart, the Netherlands. Picture: Thijs Horst.
 
 below: Caspian Gull cachinnans C.R 3CY, June 03 2024, Almere - De Vaart, the Netherlands. Picture: Thijs Horst.
 
 
 
 below: Caspian Gull cachinnans C.R 3CY, May 09 2024, Almere - De Vaart, the Netherlands. Picture: Thijs Horst.
 
 below: Caspian Gull cachinnans C.R  3CY,  March 30 2024, Almere - De Vaart, the Netherlands. Picture: Eric Roeland.
 below: Caspian Gull cachinnans C.R 2CY, August 08 2023, Almere - De Vaart, the Netherlands. Picture: Thijs Horst.
 below: Caspian Gull cachinnans C.R 2CY, July 17 2023, Almere, the Netherlands. Picture: Thijs Horst.
 
 below: Caspian Gull cachinnans C.R 2CY, June 06 2023, Almere - De Vaart, the Netherlands. Picture: Mars Muusse.
 below: Caspian Gull cachinnans C.R 2CY, May 04 2023, Almere - De Vaart, the Netherlands. Picture: Thijs Horst & Mars Muusse.
 below: Caspian Gull cachinnans C.R 2CY, April 20 2023, Almere - De Vaart, the Netherlands. Picture: Thijs Horst.
 below: Caspian Gull cachinnans C.R 2CY, April 07 2023, Almere - De Vaart, the Netherlands. Picture: Eric Roeland.
 below: Caspian Gull cachinnans C.R 1CY, September 06 2022, Cotesbach, England. Picture: Ian Bartlett.
 below: Caspian Gull cachinnans C.R 1CY, August 27 2022, Walberswick, England. Picture: Jeff Higgott.
 below: Caspian Gull cachinnans C.R 1CY, August 19 2022, Southwold, England. Picture: Brian Small.
 below: Caspian Gull cachinnans C.R 1CY, August 16 2022, Southwold, England. Picture: Brian Small.
 
 below: Caspian Gull cachinnans C.R 1CY, August 15 2022, Southwold, England. Picture: Brian Small.
 below: Caspian Gull cachinnans C.R 1CY, May 17 2022, Lelystad, the Netherlands. Picture: Mars Muusse.r[C.R] cachinnans from nest 227. 
        Picture: May 17th, 2022.Ringed on May 9th and retrapped on May 17th.  Sibling r[C.P] fledged.
 
 below: Caspian Gull cachinnans C.R 1CY, May 09 2022, Lelystad, the Netherlands. Picture: Mars Muusse.    
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