| Referens | Jensen, A.E., 2007 Conservation of seabirds and threatened avifauna in the Cagayan Ridge Marine Biodiversity Conservation Corridor, the Sulu Sea, Philippines. Conservation International-Philippines. |
| Ref. | 115839 Jensen, A.E., 2007 |
| Sida | 2 |
| Named Used as Valid | Sula sula |
| Observationsplats | |
| Distribution | Philippines. |