Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse
Cachinnans - nest Lelystad 022
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 022 positioned on artificial breakwater 1 at T-split. Location is "Nest with Black Shoe", 7 mtr east of nest 21.
- Uncertainty on ID in 2024, likely Caspian Gull cachinnans.
| nest | April 12th, 2024: full clutch (3 eggs). | April 12th, 2024: full clutch (3 eggs). | . |
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| partner 1 | May 14 2024: Caspian Gull adult. | May 14 2024: Caspian Gull adult. | . |
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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: | |
| 77,6 | 50,7 | 100,43 | 75,6 | 50 | 95,16 | 75,3 | 51,5 | 100,56 | 296,15 | ||||
| 022-2024 | # eggs | A-egg | hatch | # ringed chicks | # all chicks | # fledged chicks | comments | ||||||
| 3 | 8-4-2024 | 15-5-2024 | |||||||||||
| dam: | dam 1 T-split | ||||||||||||
| location: | Nest "black shoe". 4 mtr east of nest 21. | ||||||||||||
| parents? | New | ||||||||||||
| ring pulli: | 09-May | ||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale |
| OBSERVATIONS: | |||||||||||||
| 12-04-2024 | eggs: | 3 eggs, measured. | |||||||||||
| 21-04-2024 | eggs: | 3 eggs, not measured. | |||||||||||
| 02-05-2024 | eggs: | 3 eggs. | |||||||||||
| 07-05-2024 | eggs: | 3x. | |||||||||||
| 14-05-2024 | eggs: | 3x, hatching tomorrow. Note: long incubation period! | |||||||||||
| adult: | 1x Caspian Gull at nest. | ||||||||||||
| 31-05-2024 | nest: | seems abandoned. | |||||||||||
| 04-06-2024 | nest: | seems abandoned; failed season 2024. | |||||||||||