| উদ্ধৃতি | Konyukhov, N.B. and P.J. Ewins, 1992 Behaviour and occurrence of black guillemots Cepphus grylle in a colony of pigeon guillemots C. columba on the Chukotka peninsula U.S.S.R. In: Wanless, S. (ed.), Seabird 14. The Seabird Group, pp. 27-32. |
| সূত্র | 126331 Konyukhov, N.B. and P.J. Ewins, 1992 |
| পৃষ্ঠা | 27 |
| Named Used as Valid | Cepphus columba |
| এলাকা | |
| Distribution | Chukotka Peninsula, U.S.S.R. |