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 B:N 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-B:N and metal Arnhem NLA 5.633.721, ringed as pullus Larus cachinnans on May 16 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
27-08-2025 Zeebrugge (Strand), West-Vlaanderen, BELGIE 5.119,00 N 310,00 E colourring read Björn Deduytsche
27-08-2025 Zeebrugge (Strand), West-Vlaanderen, BELGIE 5.119,00 N 310,00 E colourring read Nathalie Colpaert
06-09-2025 Duindorp (Strand), Zuid-Holland, NL 5.205,00 N 415,00 E colourring read Leo Snellink

Data for nest C4 - 2025.

Metal ring Colour ring Date Species Age Clutch size Location Nest code Ringer Head+Bill Mass Wing Parents
NLA 5633720 y-B:M 16-5-2025 Caspian Gull pullus 3 eggs the Netherlands, De Kreupel - eiland C. C4 Leon Kelder 64,1 160,0
NLA 5633721 y-B:N 16-5-2025 Caspian Gull pullus 3 eggs the Netherlands, De Kreupel - eiland C. C4 Leon Kelder 68,1 232,0

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