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 3.1 1CY, May 20 2022, De Kreupel, the Netherlands.

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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