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

Home

Project Info
International trend
National trend
Site characteristics
Breeding biology
Fecundity
Food resources
Nonbreeding season
Breeding species
Hybrid scores
Ring codes
Future

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

 

Caspian Gull cachinnans F|4 1CY, May & September-December 2020, the Netherlands & England. Picture: Merijn Loeve, Steve Clifton & Andy Hale.

Black bar tibia ring n[F|4] and metal NLA Arnhem 5.552.915, ringed as pullus Larus cachinnans on May 21 2020 at nest 021 in colony Lelystad, the Netherlands (5230.00 N 525.00 E) - ringer Roland-Jan Buijs.
ID certain, Caspian Gull cachinnans; one partner with sub-adult patterns.
Both ringed chicks quickly after fledging reported from abroad.

Recoveries:
22-08-2020 Cromer (Strand), Norfolk, ENGELAND 5.255,00 N 118,00 E colourring read Andy Hale
04-09-2020 Cromer (Strand), Norfolk, ENGELAND 5.255,00 N 118,00 E colourring read Andy Hale
09-09-2020 Cromer (Strand), Norfolk, ENGELAND 5.255,00 N 118,00 E colourring read Andy Hale
14-09-2020 Cromer (Strand), Norfolk, ENGELAND 5.255,00 N 118,00 E colourring read Andy Hale
30-09-2020 Cromer (Strand), Norfolk, ENGELAND 5.255,00 N 118,00 E colourring read Andy Hale
01-10-2020 Cromer (Strand), Norfolk, ENGELAND 5.255,00 N 118,00 E colourring read Andy Hale
06-10-2020 Cromer (Strand), Norfolk, ENGELAND 5.255,00 N 118,00 E colourring read Andy Hale
27-10-2020 Cley (Marshes), Norfolk, ENGELAND 5.257,00 N 103,00 E colourring read Jonathan Farooqi
30-10-2020 Cley (Marshes), Norfolk, ENGELAND 5.257,00 N 103,00 E colourring read Jack Morris
30-12-2020 Cley (Marshes), Norfolk, ENGELAND 5.257,00 N 103,00 E colourring read Jonathan Farooqi
01-08-2022 Amsterdam-Westpoort (Vuilverwerking), Noord-Holland, NL 5.224,00 N 451,00 E colourring read Willem van der Waal

Data and visits for nest 021-2020:

datum: egg no: width (mm) length (mm) volume (cm3):  water test on April 15th:  
27-04-2020 A 49,6 68,9 85,34578 30 - angled, tip on bottom 3 eggs in the nest. Male with sub-adult pattern.
27-04-2020 B 49,8 70 87,40901 60 - angled, tip on bottom  
27-04-2020 C 50,1 66,6 84,16842 35 - angled, tip on bottom
  sum nest: 256,9232
21-05-2020 pulli     Two chicks, ringed n[F|2] & n[F|4]. C-egg is unfertile, taken from nest.
         
02-06-2020 pulli     Two partners at nest.

Caspian Gull cachinnans F|4 1CY, October 27 2020, Cley Marshes, Norfolk, England (52.959262, 1.055218). Picture: Steve Clifton.

Observed on October 27th and 30th, 2020 by Jonathan Farooqi, Tariq Farooqi, Steve Clifton.

Caspian Gull cachinnans F|4 1CY, September 23 2020, Cromer - Norfolk, England. Picture: Andy Hale.

Caspian Gull cachinnans F|4 1CY, September 12 2020, Cromer - Norfolk, England. Picture: Andy Hale.

below: Caspian Gull cachinnans F|4 1CY, May 21 2020, Lelystad, the Netherlands. Picture: Merijn Loeve.