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 1.5 1CY, May 13 2022, De Kreupel, the Netherlands.

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Tibia ring R-15 and metal NLA Arnhem 5.623.528, ringed as pullus Larus cachinnans on May 13 2022 at IJsselmeer (De Kreupel), Holland (5247.00 N 513.00 E) - ringer Leon Kelder.
ID is certain: both parents are Caspian Gull.

Recoveries:
25-8-2022 Brampton (RSPB Old Moor), South Yorkshire, ENGELAND 5.331,00 N 121,00 W colourring read David Waddington

Bird from De Kreupel, nest M17 on island M. 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
29-4-2022   2 eggs
13-5-2022 2 pulli in nest 5623527 Red 1.4 50.6 85.0
5623528 Red 1.5 65.3 96.0
26-5-2022 prey is Caspian Gull chick r-2X from nest P3
1 juvenile out of the nest 5623528 Red 1.5 1150
17-6-2022 1 dead large juvenile in colony 5623527 Red 1.4
13-5 - 15-5-2022 camera trap: female Caspian Gull
male Caspian Gull is r-KA