Larus cachinnans in the Netherlands

(last update: August 16, 2020)

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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 hybrid X550 5CY-7CY, May 2002 - March 2024, colony De Kreupel, the Netherlands. Picture: Leon Kelder, Thijs Horst & Mars Muusse.

DEH EA-204533 and y-X550, ringed as pullus Caspian Gull (Larus cachinnans) on June 03 2018 in a mixed Caspian Gull colony at Laußig, Sachsen, Germany (51°34'00"N 12°38'00"E).
Breeding at colony De Kreupel in season 2021, 2022, 2023. Several features in favour for hybrid.

In 2023: breeding on islan d M, nest M2. Partner unringed.
Nest with 3 eggs. First egg laid April 8th (+\- 2 days).
Nest with 3 chicks. All ringed.
G-0|4, not recorded after May 2023 (pullus in colony).
G-0|6, idem.
G-0|5, fledged, recorded in England (Wales).

below: Caspian Gull cachinnans hybrid X550 7CY, March 03-04 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.

below: Caspian Gull cachinnans hybrid X550 6CY, April 17 2023, De Kreupel - M, the Netherlands. Picture: Leon Kelder.

below: Caspian Gull cachinnans hybrid X550 5CY, June 10 2022, De Kreupel - L, the Netherlands. Picture: Leon Kelder.

below: Caspian Gull cachinnans hybrid X550 5CY, May 26 2022, De Kreupel - L, the Netherlands. Picture: Leon Kelder.