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 NLA 5.517.117 3CY-7CY, July 2020 - March 2024, De Kreupel - C, the Netherlands. Picture: Leon Kelder, Merijn Loeve, Thijs Horst & Mars Muusse.

General remarks:

• Alarming pair, on July 17 2020, late in the season at island "C". Nest labeled C21.
• No nest coded in season 2021, but may already have started breeding? May start breeding here next year?
• In 2020, one unringed partner is sub-adult bird (4CY).
• In 2020, other partner is 3CY ringed bird: metal NLA Arnhem 5.517.117, ringed as pullus Larus cachinnans at colony De Kreupel (Island C) on June 08 2018. Measurements wing = 225.5, Head = 114.8, Mass = 990 gr.

below: Caspian Gull cachinnans NLA 5.517.117 7CY, March 03 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.

below: Caspian Gull cachinnans NLA 5.517.117 5CY, April 14 2022, De Kreupel - C, the Netherlands. Picture: Merijn Loeve.

below: Caspian Gull cachinnans NLA 5.517.117 3CY, July 17 2020, De Kreupel - C, the Netherlands. Picture: Leon Kelder.

This is the first record of a Dutch bird ringed as pullus showing interest in the native colony. In fact, it returned to "island C", the exact island where it was ringed as pullus.