| Trích dẫn | Becker, P.H. and M. Wink, 2002 Sexual differences in body size of Common Tern (Sterna hirundo) fledglings. Journal for Ornithology 143:51-56. |
| Tài liệu tham khảo | 91606 Becker, P.H. and M. Wink, 2002 |
| Trang | |
| Named Used as Valid | Sterna hirundo |
| Địa phương | |
| Distribution | Germany. |