Larus cachinnans in the Netherlands

(last update: August 16, 2020)

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Caspian Gull cachinnans C|P 1CY, May-July 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst, Merijn Loeve & Mars Muusse.

You can participate in this project too! Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl

Tibia ring G-C|P and metal NLA 5.631.111, ringed as pullus Larus cachinnans on May 14 2024 in nest rF7-2024 at Lelystad, the Netherlands. Ringed by Mars Muusse (Roland-Jan Buijs ringing team).

Recoveries:
04-06-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
18-06-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
09-07-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
15-07-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst

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:
r-F7 (060) cach cach 71 50,7 91,89 69 50 86,85 68,7 50,3 87,52
266,26
  # eggs A-egg hatch # ringed chicks # all chicks # fledged chicks comments
  3 16-4-2024 14-5-2024
   
dam: dam 1 south
location: cluster nest 60-62-63. R-F7 no longer on location 60-2023; now breeding 3 mtr westwards. In cluster Blackberries, 2 mtr N of 62, wooden bumper.
parents? Same as 2020-23: r-F7 and male Caspian Gull.
   
ring pulli: 18-May
date darvic metal location / nest# species sexe age wing mass head+ bill bill tarsus gonys greyscale
26-04-2024 r-F7 .6214901 nest r-F7 (60) PONT F >6CY 439 933 125,0 58,0 68,0 21,4 6
14-05-2024 g-C|P .5631111 nest r-F7 (60) PONT 1CY 88          
31-05-2024 g-C|P .5631111 nest r-F7 (60) PONT 1CY              
04-06-2024 g-C|P .5631111 nest r-F7 (60) PONT 1CY 205 888 112,7        
                           
OBSERVATIONS:
26-03-2024 adults: Female r-F7 & unringed male cach at nest site 60/62/63-2023.
12-04-2024 eggs: no eggs.
21-04-2024 eggs: 3 eggs, measured.
nest: cluster again: 60, 69, PAM0, n-F|+, and 2 Herrings to follow soon.
26-04-2024 adults: CONTROL: trapped female r-F7 (aimed for the partner), rings not replaced, remains r-F7. This year: >6CY.
02-05-2024 eggs: 3 eggs.
05-05-2024 nest: 3 eggs, not measured.
14-05-2024 eggs: 1x.
chicks: 1x ringed.
31-05-2024 chicks: CONTROLL: g-C|P.
04-06-2024 chick: g-C|P present. measured.
18-06-2024 chick: CONTROLL: g-C|P.

below: Caspian Gull cachinnans C|P 1CY, July 15 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst.

below: Caspian Gull cachinnans C|P 1CY, July 09 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst.

below: Caspian Gull cachinnans C|P 1CY, June 18 2024, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.

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

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