| Clue | Source | Date |
|---|---|---|
| Working cats | Commuter | 04 Feb 2025 |
| Good house hunters? | ||
| Rodent-chasing cats | Commuter | 24 Apr 2024 |
| Pest-catching cats | USA Today | 03 Oct 2019 |
| Some house cats | Newsday | 23 Jun 2019 |
| Pest-catching cats | ||
| Cats — those in need of medical treatment, it seems | ||
| Vermin-catching cats | USA Today | 19 Aug 2017 |
| Farm cats, often | Wall Street Journal | 08 Jul 2017 |
| Vermin-catching cats | ||
| Some cats | Newsday | 01 Dec 2016 |
| Helpful house cats | ||
| Cats that earn their keep | ||
| Cats that earn their keep | ||
| Cats, informally | ||
| Working felines | ||
| Some cats | ||
| Certain cats | ||
| Good cats. |