Larus cachinnans in the Netherlands

(last update: August 16, 2020)

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Caspian Gull cachinnans A|0 1CY, May - June 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst, Albert de Jong, Merijn Loeve & Mars Muusse.

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Tibia ring G-A|0 and metal NLA 5.631.235, ringed as pullus Larus cachinnans on May 07 2024 in nest 34-2024 at Lelystad, the Netherlands. Ringed by Mars Muusse (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:
  cach   71,3 50,2 90,47 71,1 50,2 90,21 66,4 49,5 81,92 262,60
034-2024 # eggs A-egg hatch # ringed chicks # all chicks # fledged chicks comments
  3 8-4-2024 3-5-2024
   
dam: dam 1 blocks
location: Nest "rode flap": at blocks, just west of open tarmac, was 'nest with the branch 2022', now with red flag and black root-cloth.
parents? same as 2023?
   
ring pulli: 09-May
date darvic metal location / nest# species sexe age wing mass head+ bill bill tarsus gonys greyscale
07-05-2024 g-A|0 .5631235 34 PONT 1CY 125          
07-05-2024 g-A|2 .5631236 34 PONT 1CY 84          
14-05-2024 g-A|0 .5631235 34 PONT 1CY 349   CONTROLL      
14-05-2024 g-A|2 .5631236 34 PONT 1CY 272   DEAD      
04-06-2024 g-A|0 .5631235 34 PONT 1CY 274 811 112,8 CONTROLL      
                           
OBSERVATIONS:
12-04-2024 eggs: 3 eggs, measured. 
21-04-2024 eggs: 3 eggs, not measured. 
adult: Caspian Gull incubating.
07-05-2024 eggs: 1x cold, probably infertile
chicks: 2x ringed.
14-05-2024 chicks: CONTROLL 2 chicks.
food: Roach 2x
31-05-2024 chick: g-A|2 dead <1 days.
04-06-2024 pullus g-A|2 dead. Rings removed.
  chicks: g-A|0 present, measured.
  food: fish bolus by g-A|0 when processed.
18-06-2024 chick: g-A|0 present.

below: Caspian Gull cachinnans A|0 1CY, June 18 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst.

below: Caspian Gull cachinnans A|0 1CY, June 04 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst, Mars Muusse & Albert de Jong.

below: Caspian Gull cachinnans A|0 1CY, May 31 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst & Merijn Loeve.

below: Caspian Gull cachinnans A|0 1CY, May 07 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.

date darvic metal location / nest# species sexe age wing mass
7-5-2024 g-A|0 .5631235 34 PONT 1CY 125
7-5-2024 g-A|2 .5631236 34 PONT 1CY 84