Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse
Argenteus - nest Lelystad b/w-AJ & br-JE (097)
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 097 positioned on dam 1 west. Location is opposite harbour, 75 mtr (?) W of yellow sign 2,5. Code sprayed on tarmac.
- Uncertainty on ID in 2024, one Herring Gull argenteus. Ringed now, Herring Gull adult b/w-AJ.
- ID in 2025 cetrain, both are Herring Gull argenteus. Female ringed this season, now Herring Gull b/r-JE.
| nest | May 07 2024: Herring Gull nest. | May 07 2024: Herring Gull nest. | May 07 2024: Herring Gull nest. |
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| nest | April 28 2025: Herring Gull nest 097. | April 23 2025: Herring Gull nest 097. | . |
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| partner 1 | May 07 2024: Herring Gull adult b/w-AJ. | May 07 2024: Herring Gull adult b/w-AJ. | . |
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| partner 2 | April 28th, 2025: Herring Gull b/r-JE. | April 28th, 2025: Herring Gull b/r-JE. | April 28th, 2025: Herring Gull b/r-JE. |
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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: | |
| b/w-AJ (97) | teus | teus | 73,5 | 49,8 | 91,78 | 72,2 | 47,7 | 82,71 | 67,2 | 46,9 | 74,42 | 248,92 | |
| 2024 | # eggs | A-egg | hatch | # ringed chicks | # all chicks | # fledged chicks | comments | ||||||
| 3 | |||||||||||||
| dam: | dam 1 south | ||||||||||||
| location: | 75 W (?) of yellow sign 2,5. Code sprayed on tarmac. | ||||||||||||
| parents? | new | ||||||||||||
| ring pulli: | 03-June | ||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale | 07-05-2024 | b/w-AJ | .5631162 | dam 1 zuid, 97 | ZM | M | >4CY | 439 | 1054 | 123,2 | 50,8 | 65,5 | 21 | 4 |
| OBSERVATIONS: | |||||||||||||
| 07-05-2024 | adult: | Herring Gull male trapped at nest. | |||||||||||
| eggs: | 3x, measured. | ||||||||||||
Data for nest b/w-AJ & br-JE (097-2025):
| 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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| b/w-AJ & br-JE (97) | teus | teus | 74,6 | 48 | 72,6 | 48,7 | |||||||
| dam: | dam 1 | ||||||||||||
| location: | nest 97-2024, Again in 2025?
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| ouders: | same as 2024, Herring Gulls.
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| ringed: | |||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale |
| 4/28/2025 | b/r-JE | 6254553 | b/w-AJ | ZM | F | >4CY | 414 | 899 | 113,8 | 46,1 | 63 | 19,3 | 6 |
OBSERVATIONS:
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| 4/23/2025 | adult | b/w-AJ present.
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| 4/28/2025 | nest | 2 eggs measured.
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| adult | adult trapped, now b/r-JE.
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