| Citation | Birdlife International 2022 Spectacled Guillemot Cepphus carbo. http://datazone.birdlife.org/species/factsheet/spectacled-guillemot-cepphus-carbo [Accessed: 09/06/2022]. |
| DOI / ISBN | |
| Paper URL | http://datazone.birdlife.org/species/factsheet/spectacled-guillemot-cepphus-carbo |
| Ref. No. | 126326 |
| Language | English |
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