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 2.B 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 M6 on island M. 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) Gonys Tarsus Swab no
14-4-2022 A-egg 73.6 50.5 3 eggs
B-egg 73.2 52.4
C-egg 73.6 50.5
29-4-2022 3 eggs
trapped 4CY Caspian Gull EA222865 Red 0.C 472 137.8 67.7 1363 20.1 77.7 1066
Was y-X65C & DEH EA222865
13-5-2022 3 pulli in nest 5623534 Red 2.A 58.9 127
5623535 Red 2.B 59.1 132
5623536 Red 2.D 53.1 88
3-6-2022 1 pullus at nest 5623534 Red 2.A 200.0 104.1 950
23-6-2022 1 juvenile in colony 5623534 Red 2.A 362.0 129.4 1095 1273
12-5 - 14-5-2022 camera trap: Caspian Gull male r-0C
Caspian Gull female