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 D:6 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-D:6 and metal Arnhem NLA 5.633.781, ringed as pullus Larus cachinnans on May 22 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

Data for nest M1 - 2025.

Metal ring Colour ring Date Species Age Clutch size Location Nest code Ringer Head+Bill Mass Wing Parents
NLA 5633779 y-D:4 22-5-2025 Caspian Gull pullus 3 eggs the Netherlands, De Kreupel - eiland M. M1 Leon Kelder 83,3 453,0 82,0
NLA 5633780 y-D:5 22-5-2025 Caspian Gull pullus 3 eggs the Netherlands, De Kreupel - eiland M. M1 Leon Kelder 70,3 264,0
NLA 5633781 y-D:6 22-5-2025 Caspian Gull pullus 3 eggs the Netherlands, De Kreupel - eiland M. M1 Leon Kelder 83,4 419,0 75,5

below: Caspian Gull cachinnans D:6 1CY, July 13 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.