| Impact ID | 5163 |
| Impact Type | Other |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Anas platyrhynchos, the mallard, has been found changing its dabbling feeding behavior to a diving behavior to feed on zebra mussels. |
| Reference | 37831 |
| Great Lakes Region | Yes |
| Cost | |
| Location | Fox River, WI |
