Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans R|E 1CY, July 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
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Tibia G-R|E and metal NLA 5.641.896, ringed as pullus Larus cachinnans on May 31 2025 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team (Mars Muusse / Thijs Horst / Fred Cottaar).
Mother: g-M|3.
Father: y-P:AM0.
Nest: PAM0-M3.
In 2025: g-R|D & g-R|E fledged. Fledging rate for rthis nest 2025 = 2,0.
Recoveries:
09-07-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
11-07-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
Data for this nest in 2025:
| 2025 | parent 1 | parent 2 | A_length | A_width | A_volume | B_length | B_width | B_volume | C_length | C_width | C_volume | TOTAL NEST:
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# eggs | |
| P:AM0 & M|3 | cach | cach | 70,6 | 51,5 | 68,1 | 50,1 | 2 | |||||||
| dam: | dam 2, next to lighthouse
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| location: | New nest, 2 m W of g-A|C (orange football),
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| ouders: | new: y-P:AM0 & female g-M|3.
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| ring pulli: | ||||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale | |
| 23-4-2025 | g-M|3 | 5,641,004 | Nest PAM0 | cach | F | >4CY | 421 | 929 | 122,8 | 53,2 | 65,4 | 16,8 | 6 | |
| 31-5-2025 | g-R|D | 5641895 | y-P:AM0 & g-M|3 | PONT | pullus | 426 | ||||||||
| 31-5-2025 | g-R|E | 5641896 | y-P:AM0 & g-M|3 | PONT | pullus | 465 | ||||||||
OBSERVATIONS:
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| 3/16/2025 | nest | PAM0 not present, female g-A|E present, slightly more to the west on dam 1,
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| 3/21/2025 | feeding | PAM0 on bread near poles dam 2, not seen at nest location, g-A|E not seen that day
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| 3/25/2025 | feeding | PAM0 present at Almere wastedump
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| 4/12/2025 | nest | PAM0 at location nest 203-2020, between Spoonbills,
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| 4/21/2025 | nest | 2 eggs, measured,
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| 4/23/2025 | nest | 2 eggs, | ||||||||||||
| adult | trapped female, now g-M|3, incubating 2 eggs at nest PAM0,
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| 4/28/2025 | nest | 2 eggs | ||||||||||||
| 1/5/2025 | nest | 2 eggs | ||||||||||||
| 8-5-2025 | adult | y-P:AM0 present
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| 13-5-2025 | nest | 1 wet chick, 1 hatching
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| 31-5-2025 | nest | 2 chicks ringed
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below: Caspian Gull cachinnans R|E 1CY, July 11 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
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below: Caspian Gull cachinnans R|E 1CY, July 09 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans R|E 1CY, May 31 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
| date | darvic | metal | nest | species | sexe | age | wing | mass | head+ bill | bill | gonys | barcode | comments |
| 31-5-2025 | G-R|E | .5641896 | y-P:AM0 & g-M|3 | PONT | pullus | 465 | Ringed pullus |
