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 y-0:G (2026)
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 "y-0:G": positioned on artificial breakwater 1 central, close to r-FL nest in 2025.
- ID in 2026. Trapped 4CY female Caspian Gull, now y-0:G.
| nest | May 05 2026: nest y-0:G. | May 05 2026: nest 3 eggs. | . |
| partner 1 | May 05 2026: 4CY female y-0:G. | May 05 2026: 4CY female y-0:G. | May 05 2026: 4CY female y-0:G. |
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| partner 2 | . | . | . |
| . | . | . |
Visits and data nest y-0:G 2026.
| 2026 | 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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# eggs | |
| y-0:G | cach | ? | 70,8 | 48,9 | 67,3 | 48,8 | ||||||||
| ringed: | ||||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | tarsus | head+ bill | bill | gonys | mass | greyscale | |
| 05-05-2026 | y-0:G | .5646680 | y-0:G new | PONT | F | 4CY | 445 | 121,9 | 54,6 | 18,8 | 800 | |||
| 10-05-2026 | y-0:G | CONTROLL | ||||||||||||
OBSERVATIONS:
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| 05-05-2026 | nest | 2 eggs. | ||||||||||||
| parents | 4CY Caspian Gull trapped, now y-0:G. | |||||||||||||
| 10-05-2026 | parents | Attempt for trapping partner Caspian Gull, failed. Instead: y-0:G again. | ||||||||||||