Meet the magnificent seven: the world’s different types of swan

Swans are often seen as symbols of grace, beauty, and loyalty, gliding across waters with an elegance that few other birds can match. While many are familiar with the iconic mute swans that grace the waterways of the UK, few people realise there are six other types of swans around the world, each with their own unique appearance, behaviours, and calls. At MK Swan Rescue, our work focuses on the mute swan, but learning about these other species helps us appreciate the diversity and adaptability of swans as a whole. Each type of swan, from the deep-toned trumpeter of North America to the striking black swans of Australia, offers a glimpse into the rich tapestry of wildlife across our planet.

Swans are large, graceful waterfowl belonging to the genus Cygnus, with six extant species. Additionally, the coscoroba swan (Coscoroba coscoroba) is often associated with swans due to its appearance and behaviour, though it belongs to a separate genus. This association leads to the reference of the “magnificent seven” swan types.

Here is an overview of these seven swan species:

1. Mute Swan (Cygnus olor)

   • Identified by its orange bill with a prominent black knob at the base.
   • Native to Europe and parts of Asia; introduced to North America and other regions.
   • Despite their name, mute swans are not completely silent; they produce various sounds, including whistles, barks, and hisses.

2. Whooper Swan (Cygnus cygnus)

   • Features a yellow and black bill.
   • Breeds in northern Europe and Asia; migrates to southern Europe and eastern Asia during winter.

3. Tundra Swan (Cygnus columbianus)

   • The smallest swan species.
   • Two subspecies:
     • Bewick’s Swan (C. c. bewickii)
       • Breeds in the Arctic tundra of northern Europe and Siberia; winters in western Europe and parts of Asia.
       • Distinguished by a distinctive yellow and black bill pattern, with more yellow than the whooper swan but less uniformly shaped.
     • Whistling Swan (C. c. columbianus)
       • Breeds in North America’s Arctic regions; winters in the United States.
       • Recognised by its mostly black bill with a small yellow spot near the base.

4. Trumpeter Swan (Cygnus buccinator)

   • The largest native North American swan.
   • Known for its resonant, trumpet-like call.
   • Features an entirely black bill and white plumage.

5. Black Swan (Cygnus atratus)

   • Native to Australia.
   • Has predominantly black plumage with white flight feathers and a red bill.

6. Black-necked Swan (Cygnus melancoryphus)

   • Found in South America.
   • White body with a black neck and a distinctive red knob at the base of the bill.

7. Coscoroba Swan (Coscoroba coscoroba)

   • Native to southern South America.
   • The smallest bird commonly referred to as a swan, measuring 90 to 115 cm in length with a wingspan of about 155 cm.
   • Features white plumage with black tips on the outer primary feathers, a red bill, and red legs and feet.
   • Taxonomically distinct from true swans, it is the only member of the genus Coscoroba and has been found to have a phylogenetic relationship with the Cape Barren goose (Cereopsis novaehollandiae).
     
     Wikipedia

The inclusion of the coscoroba swan in discussions of swan species is due to its morphological and behavioural similarities to true swans, despite its distinct genetic lineage. This leads to the common reference of the “magnificent seven” swan types, encompassing both the six true swan species and the coscoroba swan.