VU
Austral Rail Rallus antarcticus



Taxonomy

Taxonomic source(s)
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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - C2a(i)

Red List history
Year Category Criteria
2016 Vulnerable C2a(i)
2013 Vulnerable C2a(i)
2012 Vulnerable C2a(i)
2008 Vulnerable C2a(i)
2006 Vulnerable
2004 Vulnerable
2000 Vulnerable
1996 Critically Endangered
1994 Critically Endangered
1988 Threatened
Species attributes

Migratory status unknown Forest dependency Does not normally occur in forest
Land mass type Land-mass type - continent
Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 518,000 medium
Extent of Occurrence non-breeding (km2) 738,600 medium
Number of locations 13 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 2500-9999 medium estimated 2001
Population trend Decreasing poor suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 1-9 - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations 7 - - -
Largest subpopulations - - -
Generation length (yrs) 4.6 - - -

Population justification: A population estimate of 2,500-9,999 mature individuals has been derived from analyses of recent records and surveys by BirdLife International (2001). This is equivalent to 3,750-14,999 individuals, rounded here to 3,500-15,000 individuals.

Trend justification: This species's population is suspected to have decreased slightly in line with levels of habitat degradation owing to agricultural development, particularly intensive grazing of the steppes, water extraction and (previously) harvesting of aquatic vegetation for cattle.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Argentina N Extant Yes Yes
Chile N Extant Yes Yes
Falkland Islands (Malvinas) V Extant

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Argentina El Zurdo
Argentina La Angostura y Alto Río Chico
Argentina Laguna Nimez y costa aledaña del Lago Argentino
Argentina Parque Nacional Los Glaciares y adyacencias (Estancias El Sosiego, La Soledad y Anita)
Argentina Sistema Península de Valdés
Chile Parque Nacional Pali Aike
Chile Parque Nacional Torres del Paine

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands major breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands major non-breeding
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) major non-breeding
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) major breeding
Wetlands (inland) Permanent Freshwater Marshes/Pools (under 8ha) major non-breeding
Wetlands (inland) Permanent Freshwater Marshes/Pools (under 8ha) major breeding
Altitude   Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops Timing Scope Severity Impact
Future Majority (50-90%) Rapid Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Gathering terrestrial plants Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines
Stresses
Ecosystem degradation
Natural system modifications Dams & water management/use Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines
Stresses
Ecosystem degradation

Recommended citation
BirdLife International (2017) Species factsheet: Rallus antarcticus. Downloaded from http://www.birdlife.org on 18/12/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 18/12/2017.