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 b/r-JG (081-2025)
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 081 positioned on dam 1, code 81 sprayed on dam. Opposite entrance marina harbour.
- In 2025 breeding birds are Herring Gulls, of which male ringed in 2025, now b/r-JG.
| location | April 28th, 2025: nest location. | April 28th, 2025: both Herring Gulls. | April 28th, 2025: 3 eggs. |
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| partner 1 | April 28th, 2025: both Herring Gulls. | April 28th, 2025: Herring Gull b/r-JG. | April 28th, 2025: Herring Gull b/r-JG. |
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Data for nest b/r-JG (081-2025).
| 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: | |
| b/r-JG | teus | teus | 66 | 47,7 | 64,2 | 47,2 | 64,1 | 47 | |||||
| dam: | dam 1 | ||||||||||||
| location: | code 81 sprayed on dam, opposite entrance marina harbour
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| parents: | new, one Herring Gull ringed in 2025, now b/r-JG. | ||||||||||||
| ringed: | |||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale |
| 4/28/2025 | b/r-JG | 6254556 | dam 1 | ZM | M | >4CY | 459 | 1144 | 125,5 | 56,8 | 66,3 | 21 | 6 |
| OBSERVATIONS: | |||||||||||||
| 4/28/2025 | adult | breeding adult trapped on nest, now b/r-JG.
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| nest | 3x eggs measured.
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