Warbling Vireo has been seen by:
| Birder | Location | Town | County | Date |
|---|---|---|---|---|
| Paul L'Etoile | Saunderstown | North Kingstown | Washington | 15-May-2021 |
| Carlos Pedro | Swan Point | Providence | Providence | 12-May-2021 |
| Don Heitzmann | Swan Point | Providence | Providence | 12-May-2021 |
| Dianne Auld | monastery | Cumberland | Providence | 08-May-2021 |
| Wayne Munns | Jamestown Spring Bird Count - Farms | Jamestown | Newport | 08-May-2021 |
| Jess Bishop | Jamestown | Jamestown | Newport | 08-May-2021 |
| Jen Leitao | Trustom | South Kingstown | Washington | 07-May-2021 |
| John Magill | Asa Pond | South Kingstown | Washington | 05-May-2021 |
| Jan St.Jean | Asa Pond | South Kingstown | Washington | 01-May-2021 |
| Dick & Marge Bradley | Hunts Mills | East Providence | Providence | 01-May-2021 |
| Barbara Sherman | Tri-Pond Park Nature Center | South Kingstown | Washington | 30-Apr-2021 |
| Sue Palmer | Rocky Brooke reservoir | South Kingstown | Washington | 29-Apr-2021 |
| John Bean | Monastery | Cumberland | Providence | 28-Apr-2021 |