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 y-0:1 (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-0:1": positioned on artificial breakwater 2 west, underneath Blue sign. Location nest 012 in 2021-2022.
- ID in 2026: female ringe din 2026, now y-0:1.
| nest | April 22 2026: nest "y-0:1". | April 22 2026: 3 eggs (full clutch). | . |
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| parent 1 | |||
| parent 2 | |||
Visits and data 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-0:1 | cach | ? | 69,9 | 49,4 | 68,0 | 50,3 | 65,0 | 48,0 | ||||||
| ringed: | ||||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | barcode | |
| 26-04-2026 | Y-0:1 | 5.641.185 | Blue Sign dam 2 | cach | F | 5CY | 436 | 788 | 123,5 | 54,6 | 66,8 | 17,6 | 26B02651 | |
OBSERVATIONS:
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| 22-04-2026 | nest | 3 eggs, measured. Small eggs. |
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| location | 1 mtr S of Blue Sign. Old location for "nest 012". | |||||||||||||
| 26-04-2026 | nest | 3 eggs. | ||||||||||||
| parents | Female trapped and ringed, now Y-0:1. | |||||||||||||