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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Caspian Gull cachinnans 1.1 1CY, May 13 2022, De Kreupel, the Netherlands.

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

Bird from De Kreupel, nest L21 on island L. 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 51.6 1 egg
29-4-2022 3 eggs
13-5-2022 2 pulli, 1 egg hatching 5623525 Red 1.1 59.1 60.0
5623526 Red 1.3 51.6 85.0
20-5-2022 3 pulli in nest 5623525 Red 1.1
5623526 Red 1.3
5623570 Red 3.G 64.7 202
17-6-2022 1 large juvenile, dead in colony 5623570 Red 3.G
1-7-2022 1 large juvenile, dead on island Q 5623526 Red 1.3
20-5 - 26-5 camera trap observations: adult female Caspian Gull
3CY male Caspian Gull partner
sometimes feeding 5 chicks
Caspian Gull r-KG visits the nest
3CY Caspian Gull p-F8 visits the nest
3CY Caspian Gull y-XJCL visits the nest
German Herring Gull y-HXN24 visits the nest
Pullus r-3H in the nest, belongs to nest L19