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

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Lelystad 2023:
nest y-PNED
nest y-P:U60
nest y-X56A
nest y-X71A
nest y-X60J
nest y-XCHP
nest w-327:U
nest n-F|6
nest n-F|8
nest n-F|+
nest n-F|N
nest r-6.B
nest r-7.P
nest r-C.G
nest w-8Z
nest 003
nest 006
nest 013
nest 014
nest 015
nest 017
nest 017B
nest 018
nest 019
nest 021
nest 026
nest 033
nest 034
nest 035
nest 038
nest 040
nest 044
nest 046
nest 048
nest 053
nest 055
nest 060
nest 061Z
nest 062
nest 063
nest 107Z
nest 108
nest 109
nest 111
nest 112
nest 127Z
nest 131Z
nest 132 YLG
nest 135
nest 139
nest 147Z
nest 163
nest 167
nest 168
nest 204
nest 206
nest 207
nest 223
nest 227
nest 230Z
nest 231
nest 244Z
nest 245Z
nest 248
nest 251
nest 252
nest 253
nest 254
nest 255Z
nest 256Z
nest 262

 

Argenteus - nest Lelystad 255

General remarks:

  • Eggs: Volume measured by Stonehouse (1964) and Spaans & Spaans (1975), which make comparison possible with data from Texel (Camphuysen pers comm 16.04.2020).
  • Nest 255 positioned on dam 2 west section: 6 mtr east of lighthouse dam 2, visible from N side. Coded with "X". Nest of Herrings, is part of "Herring Gull control group".
  • ID certain in 2023: both parents are Herring Gulls.
  • ID certain in 2024: both parents are Herring Gulls.
location April 26th, 2023: 2 eggs in nest. May 27th, 2023: both parents are Herring Gulls. April 21st, 2024: 1 egg.
 
pullus June 18th, 2023: chick g[8|J]. May 27th, 2023: chick g[8|K]. May 27th, 2023: chick g[8|L].
 

Data for nest 255-2023:

egg sizes & volume 2023
SPECIES NEST A_length A_width A_volume B_length B_width B_volume C_length C_width C_volume TOTAL NEST: known parents?
teus x teus 255-2023 69,6 49,8 86,91 69,6 49,7 86,56 69,95 48,6 83,19 256,66 To check
ring pulli: May 25 laying A egg: April 20 hatch A egg: May 18
     
catch: date:          
pullus 11-05-2023 C-egg measured.
pullus 18-05-2023 eggs, still no chicks.
    metal: darvic: mass:
pullus 27-05-2023 5.625.258 g-8|K 71
pullus 27-05-2023 5.625.259 g-8|J 92 right tibia
pullus 27-05-2023 5.625.260 g-8|L 102
   
255-2023 NEW NEST
dam: dam 2 west
location: 6 mtr east of lighthouse dam 2. Visible from N side. Red + on block in front of nest.
breeders: teus x teus
OBSERVATIONS:
26-04-2023 nest: 2 eggs. Measured.
27-04-2023 adult: probably cach is one of the parents? In retrospect: no, it was from other nest.
30-04-2023 adult: teus & teus.
11-05-2023 nest: 3 eggs, measured c egg
27-05-2023 adult: Herring Gull 2x present.
pullus 3x chicks ringed and measured.
18-06-2023 pullus g-8|K & g-8|J present, at nest site. We did not enter the dam.

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:
  teus teus 70,1 50,5 90,01 71,9 49,7 89,42 69,4 47,2 77,85 257,28
255Z-2024 # eggs A-egg hatch # ringed chicks # all chicks # fledged chicks comments
  21-4-2024 19-5-2024
   
dam: dam 2 west
location: north of  lighthouse, Herring nest with "the X".
parents? Same as 2023.
   
ring pulli: 24-May
date darvic metal location / nest# species sexe age wing mass head+ bill bill tarsus gonys greyscale
                           
OBSERVATIONS:
31-3-2024 nest: nest is empty.
21-4-2024 eggs: 1 egg, measured.
26-4-2024 eggs: B & C egg measured.