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The swan is a large waterfowl with an elongated neck and a narrow patch of naked skin in front of the eye. Swans have longer necks with more vertebrae (23–25), shorter legs and larger feet than geese,
which they superficially resemble. Seven species of true swans are recognized. Tundra and trumpeter swans (Cygnus columbianus and C. buccinator) are native to Canada.
Distribution
Swans (genus Cygnus), the largest members of the family Anatidae, are found in northern and southern temperate and Arctic zones, including Australia and South America.
The tundra swan breeds in the lower Arctic islands, Mackenzie Delta, northern Hudson Bay and northeastern Manitoba. The trumpeter swan breeds in the Yukon, the Grande Prairie region of Alberta and the Cypress Hills. It has been reintroduced at Swan Lake, near Vernon, BC, and winters in western British Columbia. The mute swan (C. olor), native to Eurasia, has become established as a breeding bird in Canada.
The tundra swan, the most numerous swan in North America, has a population of about 200,000; the trumpeter swan, now greatly reduced, has fewer than 15,000; the mute swan has perhaps 5000 feral individuals in North America.
