| Main Ref. | Penczak, T., 1999 | ||
| Predator stage | juv./adults | ||
| Food I | others | ||
| Food II | herps | ||
| Food III | toads/frogs | ||
| Food group | Amphibia | Prey Stage/Part | juv./adults |
| Food name | unidentified amphibians | ||
| Commonness | |||
| Country | Poland | ||
| Remark | Locality: Warta River. 1990-1994. | ||