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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Cachinnans - nest green-white-red rope.

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 "green-white-red rope": positioned on artificial breakwater 1 west.
  • Uncertainty on ID in 2026. April 27th: LBBG present near nest.
nest April 22 2026: nest "green-white-red rope". April 22 2026: location. April 22 2026: 1 egg.
 

Visits and data 2026.

2026 parent 1 parent 2 A_length A_width A_volume B_length B_width B_volume C_length C_width C_volume
TOTAL NEST:
 # eggs
Rope. ? ? 72,4 46,9 72,0 48,2 66,8 46,5  
 
ringed:
date darvic metal location / nest# species sexe age wing mass head+ bill bill tarsus gonys greyscale
               
OBSERVATIONS:
22-04-2026 nest

3 eggs, measured. Nest is 25 mtr W of old r-FL nest, dam 1.