Larus cachinnans in the Netherlands

(last update: August 16, 2020)

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Caspian Gull cachinnans B|7 1CY, May 14-17 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.

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Tibia ring G-B|7 and metal NLA 5.631.188, ringed as pullus Larus cachinnans on May 14 2024 in nest 3-2024 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:
3-2024 cach cach 73,4 50,3 93,50 72,6 50,4 92,85 71,9 51 94,16 280,52
  # eggs A-egg hatch # ringed chicks # all chicks # fledged chicks comments
  3 11-4-2024 7-5-2024
   
dam: dam 1 east
location: Location was 003-2020/2023, In bend, Visible from S side. Is nest 3-2020/22, but now on reed-roots, close to waterfront.
parents? same as 2023?
   
ring pulli: 11-May
date darvic metal location / nest# species sexe age wing mass head+ bill bill tarsus gonys greyscale
14-05-2024 g-B|7 .5631188 nest 3 PONT 1CY 96          
                           
OBSERVATIONS:
12-04-2024 eggs: A-egg, measured. Nest on reed-tussock near waterfront. Damaged egg.
adult: 1 bird incubating.
21-04-2024 eggs: B & C egg measured. Damaged A egg removed.
adult: 2x cach.
14-05-2024 chicks: 1x ringed; vomits fish.
eggs: 1x infertile.

below: Caspian Gull cachinnans B|7 1CY, May 17 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst.

below: Caspian Gull cachinnans B|7 1CY, May 14 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.