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 B.+ adult, August 2023 - March 2024, the Netherlands. Picture: Hans van Muiswinkel & Fred Visscher.

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

Tibia ring R-B+ and metal NLA 6.214.031, ringed as adult male Larus cachinnans on April 29 2022 at nest C3-2022 - De Kreupel, Holland (5247.00 N 513.00 E) - ringer Roland-Jan Buijs.

Recoveries:
16-06-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
17-06-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
21-06-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
24-06-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
02-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
03-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
07-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
08-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
09-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
14-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
16-08-2023 Veluwemeer, Flevoland, NL 5.223,00 N 539,00 E colourring read Hans van Muiswinkel
07-03-2024 Medemblik (Medemblikkersluisweg), Noord-Holland, NL 5.246,00 N 504,00 E colourring read Fred Visscher

Bird from De Kreupel, nest C3 on island C. 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
29-4-2022   trapped adult Caspian Gull 6214031 Red B+ 477 132.2 60.2 1020 78.0 22.2 1062
13-5-2022 3 eggs
20-5-2022 2 pulli & 1 egg in nest 5623587 Red 3.0 51.1 79
5623588 Red 3.1 54.6 106
26-5-2022 2 pulli & 1 egg
15-7-2022 carcass of bird with r-3.0 at island C Red 3.0

below: Caspian Gull cachinnans B.+ adult, March 07 2024, Medemblik, the Netherlands. Picture: Fred Visscher.

below: Caspian Gull cachinnans B.+ adult, August 16 2023, Veluwemeer - Flevoland, the Netherlands. Picture: Hans van Muiswinkel.