| Clue | Source | Date |
|---|---|---|
| San Juan __: California mission city | LA Times Daily | 13 Jun 2021 |
| San Juan __: California mission city | The Washington Post | 13 Jun 2021 |
| See 4-Down | ||
| Swallows' March 19 mecca | ||
| Bird site in California | ||
| Swallows' destination | ||
| March 19 goal of swallows. | ||
| Where the swallows return every March 19th. | ||
| Swallows' mission in California. | ||
| Poetically, where the swallows come back to. |