| Clue | Source | Date |
|---|---|---|
| Common European warbler, Phylloscopus collybita, with a yellowish-brown plumage (10) | ||
| Warbler with a repetitive two-note song | The Times Concise | 03 Feb 2024 |
| Bird, one very loud, at first calling hidden in cut hay | The Times Cryptic | 22 Sep 2023 |
| Small European warbler | The Telegraph General Knowledge | 02 Feb 2020 |