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 A:L 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-A:L and metal Arnhem NLA 5.632.632, 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:
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
26-07-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Thijs Horst

Data for nest R2 - 2025.

Metal ring Colour ring Date Species Age Clutch size Location Nest code Ringer Head+Bill Mass Wing Parents
NLA 5632631 y-A:M 16-5-2025 Caspian Gull pullus 2 eggs the Netherlands, De Kreupel - eiland R. R2 Leon Kelder 59,3 122,0
NLA 5632631 y-A:M 06-6-2025 Caspian Gull pullus -- the Netherlands, De Kreupel - eiland N. R2 Leon Kelder  
NLA 5632632 y-A:L 16-5-2025 Caspian Gull pullus 2 eggs the Netherlands, De Kreupel - eiland R. R2 Leon Kelder 69,1 213,0

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