Royal Tern has been seen by:
| Birder | Location | Town | County | Date |
|---|---|---|---|---|
| Sue Palmer | Charlestown Breachway mudflats | Charlestown | Washington | 23-Jul-2022 |
| Carlos Pedro | Charlestown Breachway | Charlestown | Washington | 06-Jul-2022 |
| Birder | Location | Town | County | Date |
|---|---|---|---|---|
| Sue Palmer | Charlestown Breachway mudflats | Charlestown | Washington | 23-Jul-2022 |
| Carlos Pedro | Charlestown Breachway | Charlestown | Washington | 06-Jul-2022 |