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.X 1CY, May 13 2022, De Kreupel, the Netherlands.

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Bird from De Kreupel, nest L15 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) Tarsus Gonys Swab no
14-4-2022 A-egg 72.4 49.9 2 eggs
B-egg 71.9 51.1
29-4-2022 3 eggs
Adult trapped, Caspian Gull r-KD 6211439 Red KD 467 139.5 68.4 1145 74,7 19.5 1071
Was ringed at nest in 2021
13-5-2022 3 pulli in nest 5623520 Red 1.W 49.4 62
5623521 Red 1.X 54.9 111
5623522 Red 1.Y 53.6 99
5623521 Red 1.X 207.0 100.6 774 955
5623522 Red 1.Y 205.0 97.3 726 957