Northern Harrier has been seen by:
| Birder | Location | Town | County | Date |
|---|---|---|---|---|
| Paul L'Etoile | Ninigret Pond | Charlestown | Washington | 24-Mar-2021 |
| David Gregg | Ocean Mist | South Kingstown | Washington | 15-Feb-2021 |
| Barbara Sherman | Mud Pond | South Kingstown | Washington | 13-Feb-2021 |
| Jen Leitao | Cards Pond Rd | South Kingstown | Washington | 13-Feb-2021 |
| John Bean | Pt Judith | Narragansett | Washington | 10-Feb-2021 |
| Dianne Auld | Trustom Pond | South Kingstown | Washington | 24-Jan-2021 |
| John Magill | Nonquit Pond | Tiverton | Newport | 07-Jan-2021 |
| Dick & Marge Bradley | Trustom | South Kingstown | Washington | 06-Jan-2021 |
| Don Heitzmann | Mud Pond | South Kingstown | Washington | 06-Jan-2021 |
| Jan St.Jean | Misquamicut | Westerly | Washington | 02-Jan-2021 |
| Wayne Munns | Jamestown Winter Bird Count | Jamestown | Newport | 02-Jan-2021 |
| Sue Palmer | Cards Pond Road | South Kingstown | Washington | 02-Jan-2021 |
| Jess Bishop | Charlestown Beach Rd | Charlestown | Washington | 01-Jan-2021 |
| Carlos Pedro | Narrow Lane | Charlestown | Washington | 01-Jan-2021 |