Larus cachinnans in the Netherlands

(last update: August 16, 2020)

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Caspian Gull cachinnans F|S 1CY-2CY, May 2020 - March 2021, Lelystad & Almere, the Netherlands. Picture: Merijn Loeve, Eric Roeland & Mars Muusse.

Black bar tibia ring n[F|S], ringed as pullus Larus cachinnans on May 21 2020 at nest 003 in colony Lelystad, the Netherlands.
ID certain, both parents are Caspian Gull cachinnans.

datum: egg no: width (mm) length (mm) volume (cm3):  water test on April 27th: laying date:  
15-4-2020 A 50,3 72,3 92,10 90 - floating, 4mm above surface    
             
27-4-2020 B 50,1 71,5 90,36 90 - hafway in water   Both parents have cachinnans wing pattern.
27-4-2020 C 47,9 70,3 81,21 90 - tip at bottom  
   
sum nest: 263,68  
21-5-2020 pulli Empty nest, 3 chicks near nest, ringed n[F|R], n[F|S], n[F|T].

below: Caspian Gull cachinnans F|S 2CY, March 29 2021, Almere, the Netherlands. Picture: Eric Roeland.

below: Caspian Gull cachinnans F|S 1CY, October 02 2020, De Blocq van Kuffeler - Almere, the Netherlands. Picture: Eric Roeland.

below: Caspian Gull cachinnans F|S 1CY, August 18 2020, De Blocq van Kuffeler - Almere, the Netherlands. Picture: Mars Muusse.

below: Caspian Gull cachinnans F|S 1CY, August 08 2020, De Blocq van Kuffeler - Almere, the Netherlands. Picture: Eric Roeland.

below: Caspian Gull cachinnans F|S 1CY, July 25 2020, De Blocq van Kuffeler - Almere, the Netherlands. Picture: Eric Roeland.

below: Caspian Gull cachinnans F|S 1CY, May 21 2020, Lelystad, the Netherlands (52°30'36.17"N 005°25'11.70"E). Picture: Merijn Loeve.