IJmuiden Project - Fred Cottaar ringing team
(last update: April 01, 2026)
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| Y.FZB |
| NLA 5.651.504 |
| HYBRID Lesser B-backed Gull |
| male, adult |
| ringed: May 22 2026 |
| Forteiland IJmuiden, Zuidwestvlak |
| Relations: |
| - |
Lesser Black-backed Gull hybrid (graellsii) Y.FZB adult, 2026, IJmuiden, the Netherlands. Picture: IJmuiden Ringing Team.
Ringed as breeding adult in season 2026 at Forteiland, IJmuiden. Ringed by Fred Cottaar ringing team.
Neighbour of hybrid YFFS. Offspring?
below: Lesser Black-backed Gull hybrid (graellsii) Y.FZB >4CY, June 08 2026, IJmuiden, the Netherlands. Picture: IJmuiden Ringing Team.
below: Lesser Black-backed Gull hybrid (graellsii) Y.FZB >4CY, June 01 2026, IJmuiden, the Netherlands. Picture: IJmuiden Ringing Team.
below: Lesser Black-backed Gull hybrid (graellsii) Y.FZB >4CY, May 29 2026, IJmuiden, the Netherlands. Picture: IJmuiden Ringing Team.
below: Lesser Black-backed Gull hybrid (graellsii) Y.FZB >4CY, May 22 2026, IJmuiden, the Netherlands. Picture: IJmuiden Ringing Team.
| nest | partner | wing | tarsus | head-bill | bill | gonys | greytone | mass | food |
| Caught on nest 3 eggs. | - | 450 | 124,4 | 58 | 18,3 | 8 | 1005 | - |
