Larus cachinnans in the Netherlands

(last update: August 16, 2020)

Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse

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Caspian Gull cachinnans R|F 1CY, 2025, the Netherlands & Belgium. Picture: Thijs Horst, Mars Muusse, Bart Put & Nathalie Colpaert.

You can participate in this project too! Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl

Tibia G-R|F and metal NLA 5.641.897, ringed as pullus Larus cachinnans on May 31 2025 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team (Mars Muusse / Thijs Horst / Fred Cottaar).

Recoveries:
29-06-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
30-06-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
29-07-2025 Bredene (Strand), West-Vlaanderen, BELGIE 5.115,00 N 257,00 E colourring read Bart Put
30-07-2025 Zeebrugge (Strand), West-Vlaanderen, BELGIE 5.119,00 N 310,00 E colourring read Nathalie Colpaert
15-08-2025 IJmuiden (Haven), Noord-Holland, NL 5.228,00 N 435,00 E colourring read T. Horst & M. Muusse

Data for this nest in 2025:

date darvic metal nest species sexe age wing mass head+ bill bill gonys barcode comments
31-05-2025 G-R|F .5641897 on water around X60J. X60J and g-A|B alarming above PONT   pullus   675 99,9       Ringed pullus
09-06-2025 G-R|F .5641897   PONT   pullus   775          

below: Caspian Gull cachinnans R|F 1CY, August 15 2025, IJmuiden, the Netherlands. Picture: Mars Muusse & Thijs Horst.

below: Caspian Gull cachinnans R|F 1CY, July 30 2025, Bredene, Belgium. Picture: Nathalie Colpaert.

below: Caspian Gull cachinnans R|F 1CY, July 29 2025, Bredene, Belgium. Picture: Bart Put.

below: Caspian Gull cachinnans R|F 1CY, June 30 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.

below: Caspian Gull cachinnans R|F 1CY, June 29 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.

below: Caspian Gull cachinnans R|F 1CY, June 09 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.

below: Caspian Gull cachinnans R|F 1CY, May 31 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.