| Main Ref. | Morrow, J.E., 1980 | ||
| Predator stage | adults | ||
| Food I | others | ||
| Food II | birds | ||
| Food III | n.a./other birds | ||
| Food group | young ducklings | Prey Stage/Part | juv./adults |
| Food name | unidentified | ||
| Commonness | |||
| Country | Canada | ||
| Remark | Locality: Saskatchewan and Athabasca river deltas. | ||