<i>Cygnus olor</i> Length: 49-67" <p> The Mute Swan is a European and Asian swan that was introduced to North America. They have found Mute Swan fossils 6,000 years old. </p> <p> Mute Swans are monogamous and often use the same nest each year. They feed on a wide range of vegetation, both aquatic and land. </p>