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

Herring Gull argenteus (hybrid) 0.V 2CY-3CY, March 2023 - October 2024, Almere - De Vaart, the Netherlands. Picture: Eric Roeland & Thijs Horst.

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

Tibia R-0V and metal NLA 5.620.236, ringed as pullus Larus cachinnans (and hybrids of that kind) on May 13 2022 at De Kreupel, Holland (5247.00 N 513.00 E). Ringer Leon Kelder.

Recoveries:
02-10-2022 Egmond aan Zee (Strand), Noord-Holland, NL 5.237,00 N 437,00 E colourring read Aad van der Ent
03-03-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
18-04-2023 Onderdijk (Vooroever), Noord-Holland, NL 5.244,00 N 508,00 E colourring read Leon Kelder
01-11-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
10-11-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
17-11-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
16-12-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
20-02-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read T. Horst & M. Muusse
16-03-2024 Wervershoof (Vooroever), Noord-Holland, NL 5.245,00 N 507,00 E colourring read Jeroen van Assema
24-06-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
21-10-2024 Velsen (Strand Noordpier), Noord-Holland, NL 5.228,00 N 433,00 E colourring read Thijs Horst

Bird from De Kreupel, nest C5 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 Mass (gr) Tarsus Gonys Swab no
14-4-2022 A-egg 72.7 51.8 2 eggs
B-egg 74.1 52.8
 
29-4-2022 Adult trapped Caspian x Herring 6214033 Red 0.A 441 123.5 57.5 933 71.4 17.8 1064
13-5-2022 3 pulli in nest 5620234 Red 0.T 55.0 98
5620235 Red 0.U 55.1 101
5620236 Red 0.V 50.9 70

below: Herring Gull argenteus (hybrid) 0.V 3CY, October 21 2024, Oostvaardersdijk - Almere, the Netherlands. Picture: Thijs Horst.

below: Herring Gull argenteus (hybrid) 0.V 2CY, March 03 2023, Almere - De Vaart, the Netherlands. Picture: Eric Roeland.

Phenotycis of Herring Gull, but may be F2-hybrid offspring of Herring Gull x caspian gull.