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

Home

Caspian Gull cachinnans 2.L 1CY-2CY, November 2022 & June 2023, England & the Netherlands. Picture: Martin Casemore & Mars Muusse.

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

Tibia ring R-2L and metal NLA Arnhem 5.623.541, ringed as pullus Larus cachinnans on May 13 2022 at IJsselmeer (De Kreupel), Holland (5247.00 N 513.00 E) - ringer Leon Kelder.
ID certain: parents are male and female Caspian Gull.

Recoveries:
08-11-2022 Dungeness (Strand), Kent, ENGELAND 5.054,00 N 58,00 E colourring read Martin Casemore & David Walker
29-04-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
06-06-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst & Mars Muusse

Bird from De Kreupel, nest M8 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)
14-4-2022 A-egg 68.4 47.5 3 eggs
B-egg 65.3 47.8
C-egg 66.0 47.0
29-4-2022 3 eggs
13-5-2022 3 pulli in nest 5623539 Red 2.H 62.7 179
5623540 Red 2.K 58.0 132
5623541 Red 2.L 55.6 112
6-5 - 9-5-2022 camera trap: female Caspian Gull
male Caspian Gull

below: Caspian Gull cachinnans 2.L 2CY, June 06 2023, Almere, the Netherlands. Picture: Mars Muusse.

below: Caspian Gull cachinnans 2.L 1CY, November 08 2022, Dungeness, England. Picture: Martin Casemore.