Larus cachinnans in the Netherlands

(last update: August 16, 2020)
Coordinator:
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse

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Nests at De Kreupel 2020
nest r-02P4 20
nest y-X804 20
nest D01 20
nest D02 20
nest D03 20
nest L01 20
nest L02 20
nest L03 20
nest M02 20

Nests at De Kreupel 2021
nest r-02P4 20
nest w-201U 21
nest g-XLHD 21
nest r-KA 21
nest r-KB 21
nest r-KC 21
nest r-KD 21
nest r-KE 21
nest r-KF 21
nest r-KH 21
nest r-KJ 21
nest r-KK 21
nest A01 21
nest C03 21
nest C04 21
nest C06 21
nest D01 21
nest D03 21
nest D05 21
nest D06 21
nest D07 21
nest D08 21
nest E01 21
nest H01 21
nest L01 21
nest L02 21
nest L05 21
nest L06 21
nest L07 21
nest M01 21
nest M04 21
nest M06 21
nest Q01 21

Caspian Gull cachinnans 3.4 2CY-3CY, March 2023 - September 2024, France & the Netherlands. Picture: Philippe Dubois, 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 R-34 and metal ring Arnhem 5.623.591, ringed as pullus Larus cachinnans on May 20 2022 at nest C1 (island C) - De Kreupel, Holland (5247.00 N 513.00 E), by ringer Leon Kelder.

Recoveries:
17-03-2023 Gueltas (Vuilstort), Morbihan, FRANKRIJK 4.805,00 N 248,00 W colourring read Philippe J. Dubois
27-04-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
12-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
28-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
30-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read J. van Assema & T. Horst
09-09-2024 Ile d' Yeu (Pointe des Corbeaux), Vendée, FRANKRIJK 4.641,00 N 216,00 W colourring read Xavier Hindermeyer

Data for this nest:

Date: Egg code Height (mm)  Width (mm) Comments Metal NLA Colour ring Wing (mm) Head+ bill (mm) Bill (mm) Mass (gr)
13-5-2022   3 eggs
20-5-2022 3 pulli in nest 5623589 Red 3.2 56.2 108
Herring Gull? 5623590 Red 3.3 48.2 65
5623591 Red 3.4 48.9 69

below: Caspian Gull cachinnans 3.4 3CY, September 09 2024, Ile d' Yeu, France. Picture: Xavier Hindermeyer.

below: Caspian Gull cachinnans 3.4 3CY, July 30 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst.

below: Caspian Gull cachinnans 3.4 3CY, July 28 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.

below: Caspian Gull cachinnans 3.4 2CY, March 17 2023, Gueltas - Morbihan, France. Picture: Philippe Dubois.