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 C:1 1CY, July 2025, colony De Kreupel, the Netherlands.

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

Tibia Y-C:1 and metal 5.633.737, ringed as pullus Larus cachinnans on May 16 2025 at IJsselmeer (De Kreupel), Noord-Holland, by ringer Leon Kelder.

Recoveries:
13-07-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst, M. Muusse & N. Colpaert

Data for nest D11 - 2025.

Metal ring Colour ring Date Species Age Clutch size Location Nest code Ringer Head+Bill Mass Wing Parents
NLA 5633737 y-C:1 16-5-2025 Caspian Gull pullus 2 eggs the Netherlands, De Kreupel - eiland D. D11 Leon Kelder 52,3 70,0
NLA 5633738 y-C:2 16-5-2025 Caspian Gull pullus 2 eggs the Netherlands, De Kreupel - eiland D. D11 Leon Kelder 50,4 62,0

below: Caspian Gull cachinnans C:1 1CY, July 13 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.