| Citation | Birding Adventure Philippines, 2011 Bridled terns on an island called San Bernardino. http://www.birdingphilippines.com/tag/seabirds/ [Accessed 06/10/2017]. |
| Ref. | 116333 Birding Adventure Philippines, 2011 |
| Page | |
| Named Used as Valid | Sterna sumatrana |
| Locality | |
| Distribution | San Bernardino Island, off Bulusan, Sorsogon. |