| Referens | Villancio, G.G., R.A. Duco, R. Sales Jr., G. Labiano, J.F. Beloy, R. Urriza and E. Austria, 2022 An annotated checklist of birds of the Dinagat Islands, Philippines. Check List 18(5):1147-1164. |
| Ref. | 127933 Villancio, G.G., R.A. Duco, R. Sales Jr., G. Labiano, J.F. Beloy, R. Urriza and E. Austria, 2022 |
| Sida | tab.5 |
| Named Used as Valid | Sula sula |
| Observationsplats | |
| Distribution | Migratory species; Dinagat Islands, Philippines. |