IJmuiden Project - Fred Cottaar ringing team
(last update: January 01, 2023)
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| Y.FRW (was Y.CWV) |
| NLA 5.540.021 |
| Lesser B-backed Gull |
| male, pullus |
| ringed: July 01 2019 |
| Forteiland IJmuiden, Centrale Vlak |
| ringed: May 08 2026 |
| Forteiland IJmuiden, Duintjes Oost |
| Relations: |
| unringed female partner 2026 |
| Y.HLU offspring 2026 |
| Y.HSM offspring 2026 |
| unringed female partner 2025 |
| unringed female partner 2024 |
| Y.DNW female partner 2023 |
| Y.DSH offspring 2023 |
| unringed female partner 2022 |
| Y.DCF "cousin" 2020 |
| Y.BJC father 2019† |
| unringed mother 2019 |
| Y.CWT sibling 2019 |
| Y.CWU sibling 2019† |
| - |
| - |
Lesser Black-backed Gull (graellsii) Y.FRW (was Y.CWV) 3CY-8CY, 2021-2026, IJmuiden, the Netherlands. Picture: ringing team IJmuiden.
Ringed as pullus in breeding season 2019 at Forteiland, IJmuiden.
Ringed by Fred Cottaar ringing team.
Chick of father g-YBJC. Sister/brother of g-YCWU and g-YCWV.
Trapped as breeding adult in breeding season 2026 at Forteiland, IJmuiden. Plastic ring replaced. Ringed by Fred Cottaar ringing team.
below: Lesser Black-backed Gull (graellsii) Y.FRW (was Y.CWV) 8CY, May 08 2026, IJmuiden, the Netherlands. Picture: IJmuiden Ringing Team.
| nest | partner | wing | tarsus | head-bill | bill | gonys | greytone | mass | swab code |
| YCWV - 3 eggs | unringed | 423 | 64,1 | 120,4 | 56 | 17,5 | 9,5 | 804 | 26B02105 |
below: Lesser Black-backed Gull (graellsii) Y.CWV 7CY, April 25 2025, IJmuiden, the Netherlands. Picture: Mars Muusse.
below: Lesser Black-backed Gull (graellsii) Y.CWV 3CY, May 18 2021, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee.
