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|P 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 G-W|P and metal Arnhem NLA 5.639.147, 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 T. Horst & M. Loeve
26-07-2025 Andijk (Jachthaven), Noord-Holland, NL 5.244,00 N 510,00 E colourring read Thijs Horst

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|P 1CY, July 13 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.