Cliff Swallow has been seen by:
| Birder | Location | Town | County | Date |
|---|---|---|---|---|
| Paul L'Etoile | Ninigret Pond | Charlestown | Washington | 28-Jul-2018 |
| Wayne Munns | Breachway | Charlestown | Washington | 28-Jul-2018 |
| Jan St.Jean | Great Swamp management area | South Kingstown | Washington | 09-May-2018 |
| Dominick Pacelli | Trustom | South Kingstown | Washington | 20-Apr-2018 |
| Dick & Marge Bradley | Trustom Pond | South Kingstown | Washington | 09-Apr-2018 |
| Matt Schenck | Trustom Pond | South Kingstown | Washington | 08-Apr-2018 |
| Dianne Auld | Trustom Pond | South Kingstown | Washington | 07-Apr-2018 |