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 D01 20

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 "D", positioned in SW corner.
  • On May 8th, 2020 no eggs present. Nest location taken by cormorants.
location Parents guarding nest, April 10th, 2020. Nest in vegetation, 3 eggs clutch, April 10th, 2020.
 
 

Visits and data.

date: egg no: width (mm): length (mm): volume (cm3):  comments:    
10-4-2020 A 50.4 69.3 121,87 3 eggs are cold    
10-4-2020 B 50.2 65.3 107,78 3 eggs are cold  
10-4-2020 C 51.0 67.8 118,04 3 eggs are cold  
             
8-5-2020       No eggs. Nest location taken by Cormorant (with 3 eggs).