| Citation | Luna-Jorquera, G., S. Garthe, F.G. Sepulveda, T. Weichler and J.A. Vasquez 2000 Population size of Humboldt Penguins assessed by combined terrestrial and at-sea counts. Waterbirds 23(3):506-510. |
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| Ref. No. | 4255 |
| Language | English |
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