Tree Swallow has been seen by:
| Birder | Location | Town | County | Date |
|---|---|---|---|---|
| Dick & Marge Bradley | Great Swamp | South Kingstown | Washington | 28-Apr-2023 |
| Paul L'Etoile | Ninigret Pond | Charlestown | Washington | 07-Apr-2023 |
| David Gregg | Saugatucket Rd | South Kingstown | Washington | 07-Apr-2023 |
| Sue Palmer | Misquamicut Club | Westerly | Washington | 26-Mar-2023 |
| Dianne Auld | Trustom/Moonstone Area | South Kingstown | Washington | 18-Mar-2023 |
| Jess Bishop | Lonsdale | Central Falls | Providence | 18-Mar-2023 |