Green Heron has been seen by:
| Birder | Location | Town | County | Date |
|---|---|---|---|---|
| Don Heitzmann | Bullocks Cove | East Providence | Providence | 18-Jul-2021 |
| Dianne Auld | Trusom Pond | South Kingstown | Washington | 18-May-2021 |
| David Gregg | East Farm Pond | South Kingstown | Washington | 18-May-2021 |
| Barbara Sherman | Quonset Bike Path Calf Pasture | North Kingstown | Washington | 11-May-2021 |
| Dick & Marge Bradley | Tillinghast pond | West Greenwich | Kent | 11-May-2021 |
| Jen Leitao | Monastery | Cumberland | Providence | 11-May-2021 |
| Carlos Pedro | Charlestown Breachway Tidal Flats | South Kingstown | Washington | 06-May-2021 |
| Jan St.Jean | Trustom | South Kingstown | Washington | 06-May-2021 |
| John Magill | Trustom Pond NWR | South Kingstown | Washington | 03-May-2021 |
| John Bean | Monastery | Cumberland | Providence | 03-May-2021 |
| Paul L'Etoile | Gilbert Stuart | North Kingstown | Washington | 03-May-2021 |
| Sue Palmer | Trustom NWR | South Kingstown | Washington | 02-May-2021 |
| Jess Bishop | Wesquage Pond | Narragansett | Washington | 25-Apr-2021 |