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Mute Swans can live up to 20 years, but their average life span is only 7 years.

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The name “mute” is derived from the fact that they are quiet during their flight else they communicate through grunts and barks.

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Even though these are called "Mute Swans," they are not silent at all. These swans have a courtship "dance" that involves a range of grunting and hissing sounds. However, the mute swans are not the only swan that perform this dance. All species and types of swans do this

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This species are usually found in shallow watered bodies (like ponds, lakes, coastal bays, marshes, streams, etc.

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Mute Swans were officially introduced to North America during the 18th century. They were found at temperate regions of Europe and western Asia.

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Courtship display is a behavioral adaptation.

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I think that there are a lot of benefits of courtship display. One of the benefits being that most animals/species find the right mate and stay with them forever. I also think that courtship display is beneficial because when a certain species tries to find their mate, they all do it in a different way. Some species have a courtship "dance" (like the swan) and others flare their wings, have a certain call, etc. These are beneficial to me because it is always interesting to see how each species tries to "impress" their mate with their way of "asking" them to be their mate.

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After courtship is complete or done, the two Mute Swans are bonded for life. This is very unusual for birds because regular birds usually mate and raise their young, then find a new mate. Swans, however, "believe in" together forever.

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Mute Swans are large, white water birds, that are around 56 to 62 inches long, and a wingspan of 79 to 94 inches long.

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When swans find a mate, the pair face each other and they ruffle their feathers, with lifted wings, and bow gracefully. This is a part of a courtship ritual.

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A courtship display is a set of display behaviors in which an animal attempts to attract a mate and exhibit their desire to copulate.

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http://www.animalspot.net/mute-swan.html

http://www.bbc.com/earth/story/20141204-the-truth-about-swans