Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse
Cachinnans - nest Lelystad g-A|B (223)
See HERE for yX540-2022.
General remarks:
- Eggs: Volume measured by Stonehouse (1964) and Spaans & Spaans (1975), which make comparison possible with data from Texel (Camphuysen pers comm 16.04.2020).
- Nest 223 positioned high on breakwater dam 2 at the north side, 5 meters north of nest 17, and 3 mtr east of nest y-X60J-2024.
- ID certain in 2022, see yX540-2022.
- In 2024: certain. Female is cachinnans. Male is cachinnans g-A|B.
| partner 1 | April 26th, 2024: male cachinnans g-A|B. | April 26th, 2024: male cachinnans g-A|B. | April 26th, 2024: male cachinnans g-A|B. |
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| partner 2 | April 23rd, 2024: female cachinnans. | April 23rd, 2024: female cachinnans. | . |
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| chick | May 31 2024: chick g-C|7. | . | . |
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| food: | April 21st, 2022: Greylag Goose on the menu. | . | |
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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: | |
| cach | cach | 77,6 | 50,3 | 98,85 | 0,00 | 0,00 | 98,85 | ||||||
| 223-2024 | # eggs | A-egg | hatch | # ringed chicks | # all chicks | # fledged chicks | comments | ||||||
| 1 | 21-4-2024 | 19-5-2024 | |||||||||||
| dam: | dam 2 central | ||||||||||||
| location: | 223-2022, 3 mtr north of 17, 3 mtr east of 253 | ||||||||||||
| parents? | Same as 2022? | ||||||||||||
| ring pulli: | 25-May | ||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale | 26-04-2024 | g-A|B | .5625287 | nest 223 dam 2 | PONT | M | >4CY | 475 | 1280 | 140,7 | 64,4 | 78,2 | 20,0 | 7 |
| 31-05-2024 | g-C|7 | .5631131 | g-A|B nest 223 | PONT | 1CY | ||||||||
| 04-06-2024 | g-C|7 | .5631131 | g-A|B nest 223 | PONT | 1CY | 100 | 485 | 84,2 | |||||
| OBSERVATIONS: | |||||||||||||
| 21-04-2024 | eggs: | 1 egg, measured. | |||||||||||
| food: | Greylag Goose chicks: 14 legs | ||||||||||||
| 26-04-2024 | adult: | adult male trapped at nest, now g-A|B. | |||||||||||
| 07-05-2024 | nest: | 3 eggs. | |||||||||||
| 14-05-2024 | nest: | 3 eggs. | |||||||||||
| 31-05-2024 | chicks: | 1x ringed. | |||||||||||
| 04-06-2024 | chicks: | g-C|7 present, measured. | |||||||||||