| Coordinator: Albert de Jong
 Merijn Loeve
 Roland-Jan Buijs
 Thijs Horst
 Leon Kelder
 Mars Muusse
 Home Project InfoInternational trend
 National trend
 Site characteristics
 Breeding biology
 Fecundity
 Food resources
 Nonbreeding season
 Breeding species
 Hybrid scores
 Ring codes
 Future
 Nests at De Kreupel 2020nest  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 2021nest  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 X610 4CY-7CY, July 2021 - September 2024, De Kreupel, the  Netherlands. Picture: Leon Kelder, Thijs Horst & Mars Muusse.Tarsus y-X610, ringed as pullus on June 06 2018 at mixed colony Gräbendorfer See, Germany.         In 2023:Breeding at De Kreupel, nest N3 on island N.
 Partner in 2023 is male y-P:A02.
 One chick found late in season (July 13th, 2023), which was ringed metal only. Parent y-X610 also photographed (camera-trap) at roost island. Chick was green ringed.
 
 below: Caspian Gull cachinnans X610 7CY,  September 07 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
 below: Caspian Gull cachinnans X610 7CY,  March 04 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
 
 
 below: Caspian Gull cachinnans X610 7CY,  March 03 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
 
 
 
 below: Caspian Gull cachinnans X610 6CY, July 13 2023, De Kreupel - F, the Netherlands. Picture: Leon Kelder.With green ringed chick. 
 below: Caspian Gull cachinnans X610 4CY, July 08 2021, De Kreupel - N, the Netherlands. Picture: Leon Kelder.
 
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