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 2.2 1CY-2CY, August 2022 & February 2023, De Kreupel & Almere, the Netherlands. Picture: Leon Kelder / camera trap & Eric Roeland.

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

Red tibia R-22 and metal Arnhem 5.623.555, ringed as pullus Larus cachinnans on 20-5-2022 at De Kreupel - island P, Holland (5247.00 N 513.00 E) - ringer Leon Kelder.

Recoveries:
02-08-2022 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
24-02-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
27-03-2023 Onderdijk (Vooroever), Noord-Holland, NL 5.244,00 N 508,00 E colourring read Leon Kelder
29-03-2023 Onderdijk (Vooroever), Noord-Holland, NL 5.244,00 N 508,00 E colourring read Leon Kelder
03-04-2023 Onderdijk (Vooroever), Noord-Holland, NL 5.244,00 N 508,00 E colourring read Leon Kelder
04-04-2023 Onderdijk (Vooroever), Noord-Holland, NL 5.244,00 N 508,00 E colourring read Leon Kelder
16-03-2024 Wervershoof (Vooroever), Noord-Holland, NL 5.245,00 N 507,00 E colourring read Jeroen van Assema

Bird from De Kreupel, nest P2 on island P. 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)
14-4-2022 A-egg 74.6 52.0 1 egg
13-5-2022 1 wet chick, 1 hatching egg
20-5-2022 2 pulli in nest 5623554 Red 2.1 62.9 158
Caspian Gull y-X712 alarming Red 2.2 70.4 251

below: Caspian Gull cachinnans 2.2 2CY, February 24 2023, Almere, the Netherlands. Picture: Eric Roeland.

below: Caspian Gull cachinnans 2.2 1CY, August 02 2022, De Kreupel - H, the Netherlands. Picture: Leon Kelder / camera trap.