Tells what factors have led to a decline in populations in the swan. Covers its natural history and shows photographs of the animal.

See photos of and read about the life cycle of a swan species native to Europe and Asia.

Sums up the range, physical appearance, and behaviors of the swan. Cites references.

Describes the species's appearance with words and a photograph. Tells what region in nests in and how it bonds with its mate for life.

Gives a description of the common species and compares the colors of adults and cygnets.

Identifies the facial differences between tundra and mute swans. Shows illustrations of the bird in flight.

Devoted to the protection of North America's largest waterfowl. It teaches visitors to identify the species, and introduces the group's work.

US Geological Survey lists the features that differentiate the species from other swans. Listen to its call and look at maps of its distribution.