Larus cachinnans in the Netherlands

(last update: August 16, 2020)

Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse

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Lelystad 2020:
nest 001
nest 002 yPNED
nest 003
nest 005 yPLDP
nest 006 yPESV
nest 008 gXLDT
nest 009
nest 011
nest 012
nest 013
nest 014
nest 015
nest 016
nest 017
nest 018
nest 021
nest 025
nest 027
nest 028
nest 029
nest 031
nest 032
nest 033
nest 034
nest 035
nest 036
nest 037
nest 038
nest 039
pair A
pair B

Caspian Gull cachinnans F|X 1CY & 5CY, May 2020 - June 2024, Lelystad & De Kreupel, the Netherlands. Picture: Leon Kelder & Merijn Loeve.

Black tibia bar ring n[F|X] and metal Arnhem 5.552.909, ringed as pullus Larus cachinnans on May 21 2020 at nest 002 y[PNED] in colony Lelystad, the Netherlands. Ringer: Roland-Jan Buijs.
ID certain, breeders are 8CY Caspian Gull cachinnans PNED and unringed adult partner.

Recoveries:
08-06-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
28-06-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder

date: egg no: width (mm): length (mm): volume (cm3):  water test on April 27th: laying date:  
15-4-2020 A 51,8 71,3 96,33 90 - floating, 4mm above surface    
             
27-4-2020 B 51,3 75,5 100,04 90 - floating, 4mm above surface  
27-4-2020 C 50,5 68,1 87,44 90 - hafway in water  
     
sum nest: 283,81
21-5-2020 pullus Empty nest, 1 chick near nest, ringed Noir F|X

below: Caspian Gull cachinnans F|X 1CY, June 08 2024, De Kreupel, the Netherlands. Picture: Leon Kelder - cameratrap.

below: Caspian Gull cachinnans F|X 1CY, May 21 2020, Lelystad, the Netherlands. Picture: Merijn Loeve.