LC
Black Swan Cygnus atratus



Taxonomy

Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: http://www.aerc.eu/DOCS/Bird_taxa_of_the_WP15.xls.
Christidis, L. and Boles, W.E. 2008. Systematics and Taxonomy of Australian Birds. CSIRO Publishing, Collingwood, Australia.
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
Turbott, E.G. 1990. Checklist of the Birds of New Zealand. Ornithological Society of New Zealand, Wellington.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2018 Least Concern
2016 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

Migratory status not a migrant Forest dependency does not normally occur in forest
Land-mass type Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 9,960,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown poor estimated 2009
Population trend stable - suspected -
Generation length 12.6 years - - -

Population justification: The global population is estimated to number c.100,000-1,000,000 individuals (Wetlands International 2006), while the population in Japan has been estimated at c.100-10,000 introduced breeding pairs (Brazil 2009).

Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Australia extant native yes
Indonesia extant vagrant yes
New Zealand extant native yes
Spain extant introduced yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Australia Fortescue Marshes
Australia Gippsland Lakes
Australia Lake Corangamite Complex
Australia Lake Wollumboola
Australia Lowbidgee Floodplain
Australia Moulting Lagoon
Australia Paroo Floodplain and Currawinya

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Marine Coastal/Supratidal Coastal Brackish/Saline Lagoons/Marine Lakes suitable resident
Marine Coastal/Supratidal Coastal Freshwater Lakes suitable resident
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) major resident
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable non-breeding
Wetlands (inland) Seasonal/Intermittent Freshwater Lakes (over 8ha) suitable non-breeding
Altitude   Occasional altitudinal limits  

Utilisation
Purpose Scale
Food - human subsistence, national
Pets/display animals, horticulture international
Sport hunting/specimen collecting subsistence, national

Recommended citation
BirdLife International (2024) Species factsheet: Black Swan Cygnus atratus. Downloaded from https://datazone.birdlife.org/species/factsheet/black-swan-cygnus-atratus on 24/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 24/11/2024.