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 megaphone.
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 "megaphone": positioned on artificial breakwater 1 west. Location is near Blackberry top of dam.
- Certainty on ID in 2026: both parents are Herring Gull. Neighbour is nest g-M|Z.
| nest | April 22 2026: nest "megaphone". | April 22 2026: location, top of dam. | April 22 2026: 1 egg. |
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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 | |
| megaphone | ? | teus | 72,3 | 49,9 | ||||||||||
| ringed: | ||||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale | |
OBSERVATIONS:
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| 22-04-2026 | nest | 1 egg, measured. Megaphone on top of dam 1 west. | ||||||||||||
| 27-04-2026 | parents | Herring Gulls. | ||||||||||||