Larus cachinnans in the Netherlands

(last update: August 16, 2020)

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Caspian Gull cachinnans 0:8 1CY, 2026, colony Lelystad, the Netherlands.

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Tibia Y-0:8 and metal 5.646.661, ringed as pullus Larus cachinnans on May 05 2026 in colony Lelystad, the Netherlands. Ringer: Roland-Jan Buijs ringing team.

Recoveries:
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Visits and data g-U|5 (Yellow helmet 248-2026).

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-U|5 (248) cach cach 74,7 52,5   72,7 52,9   71,4 51,1  
 
ringed:
date darvic metal location / nest# species sexe age wing tarsus head+ bill bill gonys mass barcode
13-04-2026 g-U|5 .6260165 Nest 248 gele helm PONT M >4CY 471 75,8 139,1 63,8 20,5 1111 26B02641
05-05-2026 Y-0:8 .5646661 g-U|5 (gele helm) PONT pullus     85
05-05-2026 Y-0:9 .5646662 g-U|5 (gele helm) PONT pullus     109
               
OBSERVATIONS:
04-04-2026 nest 2 eggs.
22-04-2026 nest 3 eggs, measured.
13-04-2026 nest 3 eggs.
  parents 1x unringed Caspian Gull trapped, now male g-U|5.
27-04-2026 nest 3 eggs.
05-05-2026 pullus 2x ringed.
  egg 1x pullus died while hatching / hole in egg.
  food Fish.
     

below: Caspian Gull cachinnans 0:8 1CY, May 05 2026, colony Lelystad, the Netherlands. Picture: Mars Muusse & Thijs Horst.