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 0.R 1CY, May 13 2022, De Kreupel, the Netherlands.

Tibia red 0.R and metal NLA 5.620.232, 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:
17-06-2022 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Maarten Hotting
01-07-2022 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Jeroen van Assema
03-08-2022 Peterhead (Ungie Estuary), Aberdeenshire, SCHOTLAND 5.730,00 N 147,00 W colourring read Doug Grant

Bird from De Kreupel, nest C4 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 Mass (gr) Tarsus Swab no
14-4-2022 A-egg 76.1 51.7 3 eggs
B-egg 75.7 52.6
C-egg 76.6 52.7
13-5-2022 3 pulli in nest, ringed today 5620231 Red 0.P 46 70.7 279 1099
5620232 Red 0.R 50.5 70.0 277 1100
5620233 Red 0.S 50 73.3 307 1101
17-6-2022 1 fledged chick r-0.R, together with parent r- K.K

below: Caspian Gull cachinnans 0.R 1CY, July 01 2022, De Kreupel, the Netherlands. Picture: Jeroen van Assema.