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

Caspian Gull cachinnans 0:3 1CY, 2026, colony Lelystad, the Netherlands.

You can participate in this project too! Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl

Tibia Y-0:3 and metal 5.641.196, ringed as pullus Larus cachinnans on May 05 2026 in colony Lelystad, the Netherlands. Ringer: Roland-Jan Buijs ringing team.

Recoveries:
===

Visits and data nest 'vuilnisbakkie' (252) g-M|1 (2026)

2026 parent 1 parent 2 A_length A_width A_volume B_length B_width B_volume C_length C_width C_volume
TOTAL NEST:
 # eggs
g-M|1 (252) cach cach 73,5 48,8 72,4 50,5 72,3 48,7 3
 
ringed:
date darvic metal location / nest# species sexe age wing tarsus head+ bill bill gonys mass greyscale
05-05-2026 Y-0:2 .5641195 Nest g-M|1 PONT   PULL           57  
05-05-2026 Y-0:3 .5641196 Nest g-M|1 PONT   PULL           66  
05-05-2026 .5641197 Nest g-M|1 PONT   PULL           47  
               
OBSERVATIONS:
09-04-2026 nest 2 eggs, measured. Nest is Vuilnisbakkie, with female g-M|1.
22-04-2026 nest 3 eggs, measured.
27-04-2026 parents Attempt to trap unringed adult on 3 eggs. Failed.
05-05-2026 pullus 3x pullus ringed (1x only metal).
     

below: Caspian Gull cachinnans 0:3 1CY, May 05 2026, colony Lelystad, the Netherlands. Picture: Mars Muusse & Thijs Horst.