Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans N|B adult, 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
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Tibia G-N|B and metal NLA 5.641.011, ringed as breeding adult Larus cachinnans on April 28 2025 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team (Mars Muusse / Thijs Horst / Fred Cottaar).
Recoveries:
01-05-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
Visits and data 2025 nest g-N|B (022).
| 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: | # eggs | |
g-N|B (022)
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cach | cach | 76 | 50,3 | 71,5 | 51,4 | 71,7 | 50,9 | 3 | |||||
| dam: | dam 1 T-split | |||||||||||||
| location: | 22 is nest "black shoe", 5 mtr E of nest 21 'de oksel'.
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| parents: | same as 2024. This season trapped the female, now g-N|B. | |||||||||||||
| ringed: | ||||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale
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| 4/28/2025 | g-N|B | 5641011 | 22 | PONT | F | >4CY | 453 | 901 | 121,1 | 56,1 | 67,9 | 17,2 | 7 | |
| OBSERVATIONS: | ||||||||||||||
| 4/23/2025 | eggs | 3 eggs, measured
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| 4/28/2025 | nest | 1 egg rotten, adult female trapped now g-N|B
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| food | bream/roach | |||||||||||||
| 5/1/2025 | adult | g-N|B present | ||||||||||||
| 13/5/2025 | nest | 2 eggs | ||||||||||||
| 31-5-2025 | nest | nest looks failed, 1 egg and broken egg, Might have started again 2m below with 3 eggs.
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below: Caspian Gull cachinnans N|B adult, April 28 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 | 28-4-2025 | G-N|B | .5641011 | 22 zwarte schoen | PONT | F | >4CY | 453 | 901 | 121,1 | 56,1 | 67,9 | 17,2 | 25B00545 | 7 | Trapped by ringer. Breeder on 3 eggs. |
