| Citation | Conroy, J.W.H. and E.L. Twelves 1972 Diving depths of the Gentoo Penguin (Pygoscelis papua) and Blue-eyed Shag (Phalacrocorax atriceps) from the South Orkney Islands. Seabirds British Antarctic Survey Bulletin 30:106-108. |
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| Ref. No. | 5228 |
| Language | English |
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