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 B.3 1CY-4CY, May 2021 - March 2024, the Netherlands, Dorset, UK & Asturias, Spain. Picture: Gilberto Sánchez Jardón, Martin Casemore, Leon Kelder, Thijs Horst & Mars Muusse.

Red tibia ring r[B.3] and metal NLA Arnhem 5.556.772, ringed as pullus Larus cachinnans on May 28 2021 at nest H01 in colony De Kreupel, the Netherlands (NL 5247.00 N 513.00 E) - ringer Leon Kelder.
ID is certain: both parents are Caspian Gull cachinnans.

Recoveries:
16-08-2021 Onderdijk (Vooroever), Noord-Holland, NL 5.244,00 N 508,00 E colourring read Leon Kelder
30-09-2021 Portland Bill (Bird Obervatory), Dorset, ENGELAND 5.031,00 N 226,00 W colourring read Martin Casemore
06-10-2021 Portland Bill (Bird Obervatory), Dorset, ENGELAND 5.031,00 N 226,00 W colourring read Martin Casemore
05-11-2021 Tapia de Casariego (Strand), Asturias, SPANJE 4.333,00 N 658,00 W colourring read Gilberto Sánchez Jardón
24-02-2023 Bunschoten-Spakenburg (Visverwerker), Utrecht, NL 5.215,00 N 523,00 E colourring read Hans van Muiswinkel
04-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
08-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
09-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
04-03-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse

Data for nest H01-2021:

Date: details:          
28-5-2021 2 unringed adult Caspian Gull cachinnans at soil stockpile.        
  3 pulli in nest. metal: tibia: mass (gr): head + bill: tarsus:
https://waarneming.nl/observation/215268851/ NLA 5.556.772 r-B.3 180 64.1 37.3
  NLA 5.556.773 r-B.4 133 58.7 37.5
NLA 5.556.774 r-B.5 270 70.8 53.5
         
11-6-2021 1 pullus near nest. metal: tibia: mass (gr): head + bill: wing:
  https://waarneming.nl/observation/216987621/ NLA 5.556.774 r-B.5 805 104.4 190.5

below: Caspian Gull cachinnans B.3 4CY, March 04 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.

below: Caspian Gull cachinnans B.3 1CY, November 05 2021, Tapia de Casariego, Asturias, Spain (4.333,00 N 658,00 W). Picture: Gilberto Sánchez Jardón.

below: Caspian Gull cachinnans B.3 1CY, October 06 2021, Portland Bill - Dorset, UK (5.031,00 N 226,00 W). Picture: Martin Casemore.

below: Caspian Gull cachinnans B.3 1CY, May 28 2021, De Kreupel - H, the Netherlands. Picture: Leon Kelder.