| Predator name | Larus crassirostris | Main Ref. | Nagasawa, K. and H. Kawamura, 2001 |
| Predator group | Ciconiiformes | Predator stage | juv./adults |
| Predator I | birds | Predator II | sea birds |
| Prey stage | recruits/juv. | ||
| % of stomach contents | - | ||
| Locality | Hokaido | ||
| Country | Japan | ||