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Black Swan - BirdForum Opus

Revision as of 21:30, 3 October 2017 by Deliatodd-18346 (talk | contribs) (Picture changed to show one in the natural range. Diet. References updated)
Adult carrying a youngster
Photo by Tiger1
Bibra Lake, Perth, Western Australia, September 2016
Cygnus atratus

Identification

110-142cm (43¼-56 in)

  • Mainly black plumage
  • White flight feathers of the wing edges
  • Bright red bill with a pale bar and tip
  • Greyish black legs and feet

Immatures - greyish-brown with pale-edged feathers.

Distribution

Southeast and southwest regions of Australia. Has also been introduced to all of New Zealand.

Feral populations can be found world-wide from escaped collections.

Photo by aa2
Western Australia, May 2009

Taxonomy

This is a monotypic species[1].

Habitat

Any wet area, fresh water and salt water. Swamps and rivers.

Behaviour

Diet

They have a vegetarian diet, consisting of the leaves and shoots of a variety of aquatic plants.

Breeding

Both sexes build the large nest which is a 1meter high mound of reeds, grasses and weeds which may be up to 1.5 metres diameter, in shallow water or on islands. The clutch of 4-8 greenish-white eggs are incubated for about 35-40 days. The young fledge about 6 months later.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2017. The eBird/Clements checklist of birds of the world: v2017, with updates to August 2017. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Wikipedia

Recommended Citation

External Links


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