| Trích dẫn | Birdlife International, 2019 BOTW. Birdlife International and Handbook of the Birds of the World. | |
| Tài liệu tham khảo | 124582 Birdlife International, 2019 | |
| Trang | ||
| Named Used as Valid | Clangula hyemalis | |
| Bình luận | from geodatabase | |
| Địa phương | ||
| Distribution |