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.S 1CY, July - September 2022, Sheffield, England. Picture: J. Hewitt & Andy Deighton.

Tibia red 1.S and metal NLA 5.623.516, ringed as pullus Caspian Gull (Larus cachinnans) on 13-05-2022 at colony De Kreupel (IJsselmeer), the Netherlands (NL 5247.00 n 513.00 E), by ringer Leon Kelder.

Recoveries:
19-07-2022 Kilnsea Wetlands, East Yorkshire, ENGELAND 5.237,00 N 7,00 E colourring read Paul Collins
22-07-2022 Kilnsea Wetlands, East Yorkshire, ENGELAND 5.237,00 N 7,00 E colourring read Paul Collins
22-08-2022 Sheffield (Redmires Reservoirs), South Yorkshire, ENGELAND 5.322,00 N 136,00 W colourring read Andy Deighton
03-09-2022 Sheffield (Redmires Reservoirs), South Yorkshire, ENGELAND 5.322,00 N 136,00 W colourring read Andy Deighton & Mike Pennington

Bird from De Kreupel, nest L14 on island L. Data for this nest:

Date: Egg code Height (mm)  Width (mm) Comments Metal NLA Colour ring Wing (mm) Head+ bill (mm) Mass (gr) Swab no
14-4-2022 A-egg 71.6 51.5 1 egg
13-5-2022 1 egg, 2 pullus in nest 5623516 Red 1.S 55.0 112
5623517 Red 1.T 53.3 78
20-5-2022 3 pulli in nest 5623516 Red 1.S
5623517 Red 1.T
5623573 Red 3.K 60.4 131
3-6-2022 1 pullus outside nest 5623516 Red 1.S 216 99.5 792 956

below: Caspian Gull cachinnans 1.S 1CY, August 22 2022, Sheffield, England. Picture: Andy Deighton.

below: Caspian Gull cachinnans 1.S 1CY, July 19 2022, Sheffield, England. Picture: J. Hewitt.