Northern Mockingbird has been seen by:
| Birder | Location | Town | County | Date |
|---|---|---|---|---|
| John Bean | Snake Den | Johnston | Providence | 06-May-2021 |
| Dianne Auld | Weekapaug | Westerly | Washington | 31-Jan-2021 |
| John Magill | Quonnie Tennis Courts | Charlestown | Washington | 19-Jan-2021 |
| David Gregg | Point Judith | Narragansett | Washington | 08-Jan-2021 |
| Dan Echt | Spooky bottom dock | East Providence | Providence | 05-Jan-2021 |
| Jen Leitao | Manville Post Office | Lincoln | Providence | 04-Jan-2021 |
| Carlos Pedro | Quonny | Charlestown | Washington | 02-Jan-2021 |
| Barbara Sherman | Watson Farm | Jamestown | Newport | 02-Jan-2021 |
| Wayne Munns | Jamestown Winter Bird Count | Jamestown | Newport | 02-Jan-2021 |
| Dick & Marge Bradley | Gardner pond area | Middletown | Newport | 01-Jan-2021 |
| Jess Bishop | Quonnie Tennis Courts | Charlestown | Washington | 01-Jan-2021 |
| Sue Palmer | Quonnie Tennis Courts | Charlestown | Washington | 01-Jan-2021 |
| Jan St.Jean | Quonny tennis courts | Charlestown | Washington | 01-Jan-2021 |
| Paul L'Etoile | Jamestown | Newport | 01-Jan-2021 | |
| Don Heitzmann | Dunns Corner Rd | Westerly | Washington | 01-Jan-2021 |