IJmuiden Project - Fred Cottaar, José Verbeek, Maarten van Kleinwee & Mars Muusse
(last update: January 01, 2023)
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| Y.DNM |
| NLA 6.213.649 |
| Herring Gull |
| female, adult |
| ringed: May 12 2023 |
| Forteiland IJmuiden, Zuidwestvlak |
| Relations: |
| Y.CUK male, partner 2023 |
| - |
| - |
Herring Gull (argenteus) Y.DNM adult, May - August 2023, IJmuiden, the Netherlands. Picture: José Verbeek-Cottaar & Mars Muusse.
Ringed as breeding adult in season 2023 at Forteiland, IJmuiden. Ringed by Fred Cottaar ringing team.
below: Herring Gull (argenteus) Y.DNM >4CY, August 08 2023, IJmuiden, the Netherlands. Picture: Mars Muusse.
below: Herring Gull (argenteus) Y.DNM >4CY, May 12 2023, IJmuiden, the Netherlands. Picture: José Verbeek-Cottaar.
Adult breeding on 3-egg clutch trapped today. Partner of male YCUK.
Egg sizes for nest YCUK/YDNM in 2023:
| 1 5 2023 | 1 | 72.6 | 50.6 | 93.6 | YCUK/YDNM |
| 1 5 2023 | 2 | 68.6 | 50.5 | 88.1 | YCUK/YDNM |
| 1 5 2023 | 3 | 67.6 | 49.6 | 83.7 | YCUK/YDNM |
Late June with 2 large chicks, but in July seen feeding 1 fledged bird. No certainty about second chick.
