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 1.V 2CY, January 30 2023, Cuves - Manche, France. Picture: Sébastien Provost.

You can participate in this project too! Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl

Tibia ring R-1V and metal ring Arnhem NLA 5.623.519, ringed as pullus Larus cachinnans on May 13 2022 at De Kreupel, nest L13 on island L, ringed by ringer Leon Kelder.

Recoveries:
30-01-2023 Cuves (Vuilstort), Manche, FRANKRIJK 4.843,00 N 105,00 W colourring read Sébastien Provost
17-04-2023 Westerslag (Strand), Texel, NL 5.302,00 N 442,00 E colourring read Bob Loos

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) Tarsus Gonys Swab no
14-4-2022 A-egg 71.2 50.6 3 eggs
B-egg 74.5 49.4
C-egg 69.6 49.9
29-4-2022 3 eggs
Adult trapped, Caspian Gull 6214038 Red 0.G 466 132.2 62.2 75.6 19.5 1070
13-5-2022 2 pulli outside nest 5623518 Red 1.U 71.5 78.6 420
5623519 Red 1.V 66.0 76.5 400

below: Caspian Gull cachinnans 1.V 2CY, January 30 2023, Cuves - Manche, France. Picture: Sébastien Provost.