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 - Herring Gull nest r-FU
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-FU positioned on dam 1 west section: close to nest XLDT-2024, near blue sign 3,0. North side of dam close to waterfront.
- ID certain in 2025: male is 5CY argenteus r-FU (pullus nest near 58-2021).
| partner 1 | May 30 2025: 5CY r-FU. | May 31 2025: trapped r-FU. | May 31 2025: trapped r-FU. |
 |
 |
 |
Data for nest r-FU in 2025:
| 2025 - r-FU | ||||||||||||
location: dam 1 near sign 3 at waterfront, N side dam 1.
|
||||||||||||
| parents: | 5CY Herring Gull r-FU | |||||||||||
| ring pulli: | ||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys |
| 31-05-2025 | r-FU | 5550691 | new nest | ZM | M | 5CY | 438 | 123,5 | 54 | 65 | 20,6 | |
| OBSERVATIONS: | ||||||||||||
| 16-03-2025 | feeding | 5CY r-FU on bread. Not linked to a nest location yet. | ||||||||||
| 20-03-2025 | feeding | r-FU present on dam underneath XLDT 2024 location.
|
||||||||||
| 31-05-2025 | nest | r-FU trapped on nest 2 eggs near waterfront, N side. CONTROL 5CY.
|
||||||||||