| Clue | Source | Date |
|---|---|---|
| Croak | New York Times | 06 Nov 2024 |
| Animal sound that's one letter away from an animal | ||
| Frog sound | Universal | 04 Jun 2021 |
| Amphibian expression | Newsday | 19 Jan 2019 |
| Frog sound | ||
| Bullfrog's sound | USA Today | 27 Apr 2017 |
| Bullfrog's sound | ||
| Croaking sound | New York Times | 19 Aug 2015 |
| Croaking sound |