One of the world’s most aggressive waterfowl species, especially while nesting and raising their young, mute swans drive out native waterfowl and other wetland wildlife with their hostile behavior. Mute swans will chase native breeding birds from their nests.Apparently, some mute swans have taken up residence near our house. Did not realize they were invasive and bad.
A single mute swan can consume four to eight pounds of plants a day. They uproot and destroy these wetland plants that are a main food source for native birds and cover for native fish and invertebrates. Continuous feeding by a flock of mute swans can destroy an entire wetland ecosystem.