IJmuiden Project - Fred Cottaar ringing team
(last update: April 01, 2026)
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| Y.HVF |
| NLA 5.651.455 |
| Lesser B-backed Gull |
| female, adult |
| ringed: March 15 2026 |
| Katwijk Industrieterrein t Heen |
| Relations: |
| - |
Lesser Black-backed Gull (graellsii) Y.HVF adult, March 15 2026, Katwijk, the Netherlands. Picture: Thijs Horst & Mars Muusse.
HPAIV-H5N1 monitoring for Vogeltrekstation Arnhem. Trapped near rooftop breeding colony at industrial estate "t Heen - Katwijk".
below: Lesser Black-backed Gull (graellsii) Y.HVF >4CY, March 15 2026, Katwijk, the Netherlands. Picture: Thijs Horst & Mars Muusse.
| wing | tarsus | head-bill | bill | gonys | grey tone | mass | swab code |
| 421 | 65,2 | 117,7 | 52,4 | 17,9 | 10 | 744 | 26B02061 |
