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 - Lelystad nest r-5X
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 r-5X positioned on dam 2, underneath VHF sign.
- ID certain in 2025: male is 4CY cachinnans r-5X (pullus nest near 112-2022).
| location | dam 2: VHF 20 sign. | dam 2: VHF 20 sign. | . |
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| partner 1 | July 09 2025: 4CY r-5X. | June 25 2025: 4CY r-5X. | April 23 2025: 4CY r-5X. |
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| chicks | June 29 2025: chick G-N|7. | . | . |
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Data for nest r-5X in 2025:
| r-5X (Caspian Gull, pullus nest 112-2022) | ||
dam: 2 underneath VHF sign
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| OBSERVATIONS: | ||
| 13-05-2025 | nest | 1 egg in nest, 1 egg outside nest
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| date: | darvic | metal | nest | species | sexe | age | wing | mass | head+ bill |
| 29-06-2025 | G-N|7 | .5641056 | R-5X | PONT | pullus | 209 | 393 | 95,9 |