| Trích dẫn | Hüppop, O., J. Dierschke, K.-M. Exo, E. Fredrich and R. Hill, 2006 Bird Migration and Offshore Wind Turbines. In Ch. 9: 91-117. Köller, J., J. Köppel and W. Peters (eds.). Offshore Wind Energy, Research on Environmental Impacts. Springer: Germany. 371 pp. |
| Tài liệu tham khảo | 96348 Hüppop, O., J. Dierschke, K.-M. Exo, E. Fredrich and R. Hill, 2006 |
| Trang | 98 |
| Named Used as Valid | Branta bernicla |
| Địa phương | |
| Distribution | Helgoland, German North Sea. |