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 M02 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 "M", positioned at west side.
pullus May 21st, 2020 pullus p[F9].  
 

Visits and data.

date: egg no: width (mm): length (mm): volume (cm3):      Comments:    
21-5-2020 C 52,3 67,1 118,56 Egg not furtile.   2 pulli ringed. One egg present.
    WING: HEAD + BILL: BILL: WEIGHT:  
21-5-2020 pullus NLA 5.545.429 & p[F9] -- 71.1 27.7 252 Pullus ringed, F9.
21-5-2020 NLA 5.545.431 -- 67.1 25.3 200 Pullus ringed, only metal, no colour ring.