Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans R|T 4CY, May 31 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
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Tibia G-R|T and metal NLA 5.641.915, ringed as breeding adult Larus cachinnans on May 31 2025 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team (Mars Muusse / Thijs Horst / Fred Cottaar).
Recoveries:
13-06-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
29-06-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
09-07-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
Data for nest g-R|T & b/r-JV 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: | |
| g-R|T & b/r-JV | cach | teus | |||||||||||
| dam: | dam 1, blocks | ||||||||||||
| location: | blocks north side, 1m above + sign on dam, 2 mtr E of nest 53.
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| parents: | New, mixed couple. Both trapped in 2025: 4CY Caspian male is now g-R|T. Adult female Herring is now b/r-JV. | ||||||||||||
| ringed: | |||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale |
| 31-05-2025 | b/r-JV | 6254570 | Nest with + on blocks dam 1 | ZM | F | >4CY | 407 | 730 | 112,6 | 50,8 | 65,2 | 18,3 | 5 |
| 31-05-2025 | g-R|T | 5641915 | Nest with + on blocks dam 1 | PONT | M | 4CY | 459 | 1029 | 141 | 62,2 | 67 | 18,8 | 7 |
| OBSERVATIONS: | |||||||||||||
| 31-05-2025 | adult | Adult female trapped at nest, now b/r-JV and adult male g-R|T.
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| eggs | 2x eggs. | ||||||||||||
| 14-06-2025 | nest | nest failed. | |||||||||||
below: Caspian Gull cachinnans R|T 4CY, May 31 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
| date | darvic | metal | nest | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | barcode | greyscale | comments | 31-5-2025 | G-R|T | .5641915 | Nest with + on blocks dam 1 | PONT | M | 4CY | 459 | 1029 | 141 | 62,2 | 67 | 18,8 | 7 | trapped by ringer. |
