Larus cachinnans in the Netherlands

(last update: August 16, 2020)

Coordinator:
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Leon Kelder
Mars Muusse

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Cachinnans - nest De Kreupel Q01 21

General remarks:

  • Eggs: Volume measured by Stonehouse (1964) and Spaans & Spaans (1975), which make comparison possible with data from Texel (Camphuysen pers comm 16.04.2020).
  • Nest on island "Q". Nest coded "Q01" in season 2021.
partner 1: June 11th, 2021. .
   
pulli: June 11th, 2021: pullus red B.C. June 11th, 2021: pullus red B.C.
 
  August 6th, 2021: pullus red B.C. August 6th, 2021: pullus red B.C.
 

Visits and data.

 

Date: details:          
11-6-2021 Caspian Gull cachinnans alarming at nest. One is 4CY, one is adult.
  1 pullus outside nest. metal: tibia: mass (gr): head + bill: wing:
https://waarneming.nl/observation/216988114/  NLA 5.556.793 r-B.C. 701 93.5 152.0
           
6-8-2021 2 partners & 1 begging chick. https://waarneming.nl/observation/222234550/