Sargasso Shearwater has been seen by:
| Birder | Location | Town | County | Date |
|---|---|---|---|---|
| Carlos Pedro | Block Canyon | Pelagic | Offshore | 04-Sep-2018 |
| Paul L'Etoile | Block Canyon | Pelagic | Offshore | 03-Sep-2018 |
| Wayne Munns | Block Canyon | Pelagic | Offshore | 03-Sep-2018 |
| Birder | Location | Town | County | Date |
|---|---|---|---|---|
| Carlos Pedro | Block Canyon | Pelagic | Offshore | 04-Sep-2018 |
| Paul L'Etoile | Block Canyon | Pelagic | Offshore | 03-Sep-2018 |
| Wayne Munns | Block Canyon | Pelagic | Offshore | 03-Sep-2018 |