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 hybrid R|R 1CY, June 25 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.

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

Tibia G-R|R and metal NLA 5.641.912, ringed as pullus Larus cachinnans x argentatus hybrid on May 31 2025 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team (Mars Muusse / Thijs Horst / Fred Cottaar).

Recoveries:
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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|R .5641912 26/blauwe emmer HYBRID   pullus   989         Ringed pullus
09-06-2025 G-R|R .5641912 HYBRID pullus 966          

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

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

Below: g-R|R & g-T|B.

below: Caspian Gull cachinnans hybrid R|R 1CY, June 25 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.

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

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