Larus cachinnans in the Netherlands

(last update: August 16, 2020)

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Caspian Gull cachinnans C|2 1CY, May - June 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst & Merijn Loeve.

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Tibia ring G-C|2 and metal NLA 5.631.128, ringed as pullus Larus cachinnans on May 31 2024 in nest n-F|+ 2024 at Lelystad, the Netherlands. Ringed by Merijn Loeve (Roland-Jan Buijs ringing team).

Visits and data 2024.

NEST code parent 1 parent  2 A_length A_width A_volume B_length B_width B_volume C_length C_width C_volume TOTAL NEST:
n-F|+ 2024 cach cach 74,6 48,6 88,72 72,1 50 90,76 70,7 47 78,63 258,11
  # eggs A-egg hatch # ringed chicks # all chicks # fledged chicks comments
  3 16-4-2024 14-5-2024
   
dam: dam 1 south
location: dam 1 south, near cluster nest 60, but 5 mtr S, at Blackberry edge.
parents? n-F|+-2023 was at dam 2. Now new breeder at dam 1.
   
ring pulli: 18-May
date darvic metal location / nest# species sexe age wing mass head+ bill bill tarsus gonys greyscale
30-04-2024 n-F|+ .5552921 Dam 1 PONT M 5CY 464 1180 135 60,3 71 19,6 5
31-05-2024 g-C|2 .5631128 N-F|+ PONT 1CY              
31-05-2024 g-C|3 .5631129 N-F|+ PONT 1CY              
04-06-2024 g-C|2 .5631128 N-F|+ PONT 1CY 127   91,9        
04-06-2024 g-C|3 .5631129 N-F|+ PONT 1CY 220 809 108,7        
                           
OBSERVATIONS:
12-04-2024 eggs: no nest found.
21-04-2024 eggs: 3 eggs, measured.
nest: cluster again: 60, 69, PAM0, n-F|+, and 2 Herrings to follow soon.
30-04-2024 adults: trapped n-F|+.
02-05-2024 eggs: 3 eggs.
05-05-2024 nest: 3 eggs, not measured.
14-05-2024 nest: 2 eggs, no chick found in dense vegetation.
31-05-2024 chicks: 2x ringed.
04-06-2024 chick: g-C|2 & C|3 present. measured.
  food: fish bolus.

below: Caspian Gull cachinnans C|2 1CY, June 04 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst, Mars Muusse & Albert de Jong.

Food: fish.

below: Caspian Gull cachinnans C|2 1CY, May 31 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst & Merijn Loeve.

date darvic metal location / nest# species sexe age wing mass head+ bill bill tarsus gonys greyscale
30-04-2024 n-F|+ .5552921 Dam 1 PONT M 5CY 464 1180 135 60,3 71 19,6 5
31-05-2024 g-C|2 .5631128 N-F|+ PONT 1CY
31-05-2024 g-C|3 .5631129 N-F|+ PONT 1CY