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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Caspian Gull cachinnans F5 1CY-2CY, May 2020 & May 2021, De Kreupel & Almere, the Netherlands. Picture: Leon Kelder & Eric Roeland.

Bird hatched in nest K02 in season 2020. Brother / sister of P[F6].
date: egg no: width (mm): length (mm): volume (cm3):        comments:  
10-4-2020 A 50,9 74,3 141,48       2 eggs in nest.  
10-4-2020 B 51,2 76,3 150,08      
               
24-4-2020 Attempt to trap parents at nest. Unsuccessful.
      WING: HEAD + BILL: BILL: WEIGHT:  
8-5-2020 pullus NLA 5.545.423 & p[F5] -- 55.1 20.9 128   2 pulli in nest.  
8-5-2020 pullus NLA 5.545.422 & p[F6] -- 53.8 20.1 98      
         
21-5-2020 pullus NLA 5.545.423 & p[F5] 137,0 87.4 34.8 632   No trace of F6.  

below: Caspian Gull cachinnans F5 2CY, May 01 2021, Almere, the Netherlands. Picture: Eric Roeland.

below: Caspian Gull cachinnans F5 1CY, May 21 2020, De Kreupel, the Netherlands. Picture: Leon Kelder.