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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Lelystad 2021
nest y-PNED
nest y-PLDP
nest y-PHSV
nest y-P:A02
nest y-P:U60
nest zy-MT
nest r-FB
nest r-FC
nest 001
nest 003
nest 006
nest 011
nest 012
nest 013
nest 014
nest 015
nest 016B
nest 017
nest 018
nest 019
nest 021
nest 034
nest 035
nest 038
nest 040
nest 041
nest 042
nest 044
nest 045
nest 046
nest 047
nest 048
nest 053
nest 055
nest 056
nest 058
nest 060
nest 062
nest 063
nest 065
nest 066
nest 067
nest 072

 

Caspian Gull cachinnans F|5 1CY, May 28 2021, Lelystad, the Netherlands. Picture: Albert de Jong.

Pullus Caspian Gull cachinnans. ID certain, both parents are adult Caspian Gull cachinnans, father is y-PLDP at nest PLDP.

Visits and data.

date: egg no: width (mm) length (mm) volume (cm3):     
30-03-2021 PLDP and partner both present at blocks near waterfront.
       
16-4-2021 egg no: width (mm) length (mm) volume (cm3):  water test on April 16th, 2021:  
  A egg 51,3 75,2 99,64 45 - tip bottom 3 eggs in nest. 2 partners at nest, one is y[PLDP].
  B egg 50,6 77,2 99,52 35 - tip bottom
  C egg 50,5 77 98,87 30 - tip bottom
    sum nest: --    
       
24-04-2021 partner 2 is unringed. Code of nest changed to 52.
       
26-04-2021 No visit, Camilla is trapping Spoonbills here.
       
06-05-2021 2 chicks of few days old. 1 egg is hatching.
       
13-05-2021 No visit, Camilla is trapping Spoonbills here.
       
15-05-2021       mass (gr) head + bill (mm)  
  pullus     142 --  
  pullus 221 65,5 measurements Monika Ballmann.
       
28-05-2021   metal tibia mass (gr) head + bill (mm)  
  pullus .5559418 b-F|5 -- 87 probably C-chick.
       
08-06-2021 PLDP attacks us. Partner also present. No chick visible.