Tundra swans are often confused with trumpeter swans, and indeed the two species are ... flapping of the swan's wings produces a tone that once earned it the name "whistling swan." ...

A mute swan typically has only one mate in its lifetime. Pairs usually don’t break up, often only seeking a new partner if their mate dies. Three Swan Species Live in North America Only three ...

The whooper swan, like its onomatopoeic cousins, the whistling and the trumpeter ... can be considered a swan among swans, the type species, hence archetype, of all swans. It is also a swan ...