Invasives: Mute Swans
Mute swans are an invasive non-native species that pose a growing threat to native animals, habitat and people. Their numbers are well above an acceptable range, requiring the DNR to increase management efforts. The DNR needs your help to decrease this invasive population.
Free Mute Swan Webinar
The Mute Swan (Cygnus olor) is native to Eurasia and was an introduced species to North American parks and estates. Escaped individuals have established breeding populations outside of captivity and their aggressive behavior poses a great threat to native waterfowl.
Because of their strength & aggressiveness, Mute Swans have very few natural enemies to help control their rapidly increasing populations.
Mute swans compete for resources with other waterfowl such as loons, ducks, colonial waterbirds, tundra swans & geese and will sometimes completely displace, or even kill, native waterfowl.