Larus cachinnans in the Netherlands

(last update: August 16, 2020)
Coordinator:
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse

Home

Project Info
Location Lelystad
Location De Kreupel
2019 Lelystad
2020 Lelystad
2021 Lelystad
Coded nests Lelystad
2020 De Kreupel
2021 De Kreupel
Coded nests De Kreupel
All ring codes 2020
All ring codes 2021

Lelystad 2020:
nest 001
nest 002 yPNED
nest 003
nest 005 yPLDP
nest 006 yPESV
nest 008 gXLDT
nest 009
nest 011
nest 012
nest 013
nest 014
nest 015
nest 016
nest 017
nest 018
nest 021
nest 025
nest 027
nest 028
nest 029
nest 031
nest 032
nest 033
nest 034
nest 035
nest 036
nest 037
nest 038
nest 039
pair A
pair B

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.A 1CY, May & August 2021, Lelystad-Almere, the Netherlands. Picture: Albert de Jong & Eric Roeland.

Pullus which may belong to Caspian Gull cachinnans nest 53, but uncertain (may belong to adjacent LBBG nest).
First images of r-F.A in juvenile pluamge, by Eric Roeland, give strong cachinnans feeling.
Brother/sister is b-F|=.

Visits and data.

date:            
16-04-2021 Nest checked. 3 eggs.
  egg no: width (mm): length (mm): volume (cm3):  water test on April 24th: laying date:
  A 49,2 70 85,32 30 - tip bottom  
  B 50,6 67,1 86,50 15 - tip bottom  
  C 50,3 70,1 89,30 35 - tip bottom  
sum nest: 261,12
   
24-04-2021 Michahellis present.
   
26-04-2021 Michahellis present, but is this the exact location of nest 53? Flag has fallen down.
   
06-05-2021 2 cachinnans at this location, but flag has fallen down, no exact position determined from water.
   
13-05-2021 No visit, Camilla is trapping a Spoonbill.
   
15-05-2021 3 eggs in nest near flag, with brownish pattern, resembling LBBG-eggs. Was this measured on May 6th? 1,5 meters east another nest, 2 bluish eggs, more like cachinnans.
  Landing adult cachinnans at this nest photographed; LBBG near flag 53 photographed.
   
28-05-2021 Two pulli ringed.
    metal ring darvic ring head + bill age
  pullus .5559425 b-F|= 52,8 age: 2 / 3 days old
  pullus .5559426 r-F.A 50,8 age: 2 / 3 days old
  egg: just hatching.
   
8-6-2021 No visit.

below: Caspian Gull cachinnans F.A 1CY, August 22 2021, Almere, the Netherlands. Picture: Eric Roeland.

below: Caspian Gull cachinnans F.A 1CY, May 28 2021, Lelystad, the Netherlands. Picture: Albert de Jong, Roland-Jan Buijs & Mars Muusse.