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 W|N 1CY, 2025, Spain, France & the Netherlands. Picture: Pablo Lado, Léo Roumieu, Thijs Horst & Mars Muusse.

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

Tibia G-W|N and metal Arnhem NLA 5.639.146, ringed as pullus Larus cachinnans on May 09 2025 at IJsselmeer (De Kreupel), Holland (5247.00 N 513.00 E), by ringer Leon Kelder.

Recoveries:
04-07-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Peter van Horssen
13-07-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst, M. Muusse & N. Colpaert
18-07-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Peter van Horssen
18-07-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Loeve
16-08-2025 Gullane Point (Intertidal zone), East Lothian, SCHOTLAND 5.602,00 N 251,00 E colourring read Keith Gillon
14-12-2025 Port d'Audierne (Haven), Finistère, FRANKRIJK 4.801,00 N 432,00 W colourring read Léo Roumieu & Stéphane Guerin & Léo Roumieu
31-12-2025 Carballo (Laguna de Baldaio), A Coruña, SPANJE 4.317,00 N 839,00 W colourring read Pablo Lado

Data for nest M2 - 2025.

Metal ring Colour ring Date Species Age Clutch size Location Nest code Ringer Head+Bill Mass Wing Parents
NLA 5639145 g-W|M 09-5-2025 Caspian Gull pullus 3 eggs the Netherlands, De Kreupel - eiland M. M2 Leon Kelder 54,6 99,0
NLA 5639146 g-W|N 09-5-2025 Caspian Gull pullus 3 eggs the Netherlands, De Kreupel - eiland M. M2 Leon Kelder 61,6 153,0
NLA 5639147 g-W|P 09-5-2025 Caspian Gull pullus 3 eggs the Netherlands, De Kreupel - eiland M. M2 Leon Kelder 63,1 173,0

below: Caspian Gull cachinnans W|N 1CY, December 31 2025, Carballo - A Coruña, Spain. Picture: Pablo Lado.

below: Caspian Gull cachinnans W|N 1CY, December 14 2025, Port d'Audierne - Finistère, France. picture: Léo Roumieu.

below: Caspian Gull cachinnans W|N 1CY, July 18 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.

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