| Trích dẫn | Sea Duck Joint Venture, 2003 Sea duck information series: Long-tailed duck (Clangula hyemalis). Sea Duck Joint Venture http://www.seaduckjv.org/infoseries/ltdu_sppfactsheet.pdf. [Accessed 08/02/2010]. |
| Tài liệu tham khảo | 83519 Sea Duck Joint Venture, 2003 |
| Trang | |
| Named Used as Valid | Clangula hyemalis |
| Địa phương | |
| Distribution |