Least Bittern has been seen by:
| Birder | Location | Town | County | Date |
|---|---|---|---|---|
| Carlos Pedro | Mud Pond | South Kingstown | Washington | 08-Dec-2018 |
| Dominick Pacelli | Mud Pond | South Kingstown | Washington | 06-Dec-2018 |
| Dianne Auld | Moonstone Beach | South Kingstown | Washington | 02-Dec-2018 |
| Barbara Sherman | Mud Pond | South Kingstown | Washington | 01-Dec-2018 |
| DAVID WALLIS | Mud Pond | South Kingstown | Washington | 01-Dec-2018 |
| Kari McDonald | Mud pond/ moonstone beach | Charlestown | Washington | 30-Nov-2018 |
| Don Heitzmann | Moonstone Beach | South Kingstown | Washington | 24-Nov-2018 |
| Jan St.Jean | Trustom Pond | South Kingstown | Washington | 29-Jun-2018 |
| Matt Schenck | Trustom Pond NWR | South Kingstown | Washington | 26-Jun-2018 |
| Dick & Marge Bradley | Trustom pond | South Kingstown | Washington | 14-May-2018 |