Trumpeter swans usually mate for life. Their big, bulky nests are mounds of reeds, rushes, roots and grasses lined with fresh swan's down. They're often built on top of beaver lodges, muskrat houses or small islands.
HABITATRiverine wetlands, lakes, ponds, and marshes
DIETAquatic plants, insects, and snails
LIFE Expectancy35 years in captivity, 12 years in the wild