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.M 1CY-3CY, July 2022 - October 2024, the Netherlands & England. Picture: Annelies Marijnis, Dale Green & Robert Flood.

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

Tibia red 1.M and metal NLA 5.623.512, ringed as pullus Caspian Gull (Larus cachinnans) on 13-05-2022 at colony De Kreupel (IJsselmeer), the Netherlands (NL 5247.00 n 513.00 E), by ringer Leon Kelder.

Recoveries:
16-07-2022 Cotesbach (Vuilstort), Leicestershire, ENGELAND 5.225,00 N 112,00 W colourring read Carl Baggott
27-07-2022 Cotesbach (Vuilstort), Leicestershire, ENGELAND 5.225,00 N 112,00 W colourring read Dale Green
30-08-2022 Isles of Scilly (Offshore), ENGELAND 4.957,00 N 618,00 W colourring read Robert Flood

Bird from De Kreupel, nest L8 on island L. Data for this nest:

Date: Egg code Height (mm)  Width (mm) Comments Metal NLA Colour ring Wing (mm) Head+ bill (mm) Mass (gr) Swab no
14-4-2022 A-egg 71.1 51.2 3 eggs
B-egg 71.7 51.9
C-egg 67.8 50.1
29-4-2022 3 eggs
13-5-2022 3 pulli in nest 5623512 Red 1.M 59.4 147
5623513 Red 1.N 56.1 126
5623514 Red 1.P 53.5 90
3-6-2022 3 pulli in nest 5623512 Red 1.M 225.5 102.6 849 952
5623513 Red 1.N 214.5 97.5 766 951
5623514 Red 1.P 205.0 107.0 761 953

below: Caspian Gull cachinnans 1.M 3CY, October 2024, Katwijk aan Zee, the Netherlands. Picture: Annelies Marijnis.

below: Caspian Gull cachinnans 1.M 1CY, August 30 2022, Isles of Scilly, England. Picture: Robert Flood.

below: Caspian Gull cachinnans 1.M 1CY, July 27 2022, Cotesbach, England. Picture: Dale Green.