- ADF&G's Wildlife Notebook Series: Swans
 - Describes the two species of swans that are native to North America, Trumpeter Swans (Cygnus buccinator) and Tundra Swans (C. columbianus). - Pictures of Swans
- Photographs taken at Horn Pond in Woburn, MA.
- Swans
- Offers an introduction to the waterfowl know for their graceful appearance.
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