Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans T|9 adult, May 30 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
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Tibia G-T|9 and metal NLA 5.641.858, ringed as breeding adult Larus cachinnans on May 30 2025 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team (Mars Muusse / Thijs Horst / Fred Cottaar).
Recoveries:
30-06-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
09-07-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
Visits and data 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 | |
| g-A|H & g-T|9 | cach | cach | 73,1 | 50,4 | 72,2 | 52,1 | 72,2 | 51,1 | 3 | |||||
| dam: | dam 1 east
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| location: | No longer nest 139, it moved 40 m W towards old nest g-A|A 2024, Only visible from N-side dam 1
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| parents: | ||||||||||||||
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| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale | |
| 30-05-2025 | g-T|9 | 5641858 | 139 | PONT | F | >4CY | 430 | 865 | 124,4 | 51,5 | 68,5 | 18,5 | 7 | |
| 25-06-2025 | G-R|7 | 5641970 | G-A|H & G-T|9 | PONT | pullus | 121 | ||||||||
| 25-06-2025 | G-R|8 | 5641971 | G-A|H & G-T|9 | PONT | pullus | 93 | ||||||||
OBSERVATIONS:
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| 16-03 | nest | g-A|H & cach partner on blocks in front of nest, east dam 1, Also on bread
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| 20-03 | nest | g-A|H present around nest location 2024
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| 21-03 | nest | g-A|H present around nest location 2024
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| 25-03 | nest | g-A|H present around nest location 2024
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| 23-04 | nest | Nest close to g-A|A 2024, large black fender cushion placed in front of nest between stones
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| adult | g-A|H incubating
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| eggs | 3 eggs, measured
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| 28-04 | nest | g-A|H incubating
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| 30-05 | nest | adult trapped, still 3 eggs
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| 09-06-2025 | nest | 3 eggs | ||||||||||||
| 14-06-2025 | nest | 3 eggs | ||||||||||||
| 25-06-2025 | chicks | 2 chicks ringed, 1 rotten egg
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below: Caspian Gull cachinnans T|9 adult, May 30 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
| date | darvic | metal | nest | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | barcode | greyscale | comments | 30-5-2025 | G-T|9 | .5641858 | 139 | PONT | F | >4CY | 430 | 865 | 124,4 | 51,5 | 68,5 | 18,5 | 7 | trapped by ringer. |
