| Clue | Source | Date |
|---|---|---|
| Some winter travelers to the U.S | New York Times | 28 Apr 2021 |
| Pesky V-formation fliers | LA Times Daily | 22 Sep 2020 |
| Pesky V-formation fliers | The Washington Post | 22 Sep 2020 |
| During shocking seance, saw winged creatures | The Telegraph Toughie | 28 Mar 2019 |
| Fire an oral health grp.'s honking birds? | The Washington Post Sunday | 20 Jan 2019 |
| Birds often considered pests | USA Today | 26 Nov 2018 |
| Birds often considered pests |