• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

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. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.

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

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	1,610,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	7300-18000 mature individuals	poor	estimated	2009
Population trend	decreasing	-	suspected	-
Generation length	7.8 years	-	-	-

Population justification: The species has a large global population estimated to number 11,000-26,000 individuals (Delaney and Scott 2006), roughly equivalent to 7,300-18,000 mature individuals. The Falkland/Malvinas Islands population is estimated at 600-1,200 birds, although the population trend appears to be unknown (Woods and Woods 1997). Reports from Argentina suggest that the species is still numerous, particularly in Patagonia (M. Pearman in litt. 2003).

Trend justification: The overall population trend is decreasing, although some populations have unknown trends (Delaney and Scott 2006).

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Argentina	extant	native
Chile	extant	native
Falkland Islands (Malvinas)	extant	native

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Marine Intertidal	Rocky Shoreline	major	non-breeding
Marine Intertidal	Rocky Shoreline	major	breeding
Marine Intertidal	Tidepools	major	breeding
Marine Intertidal	Tidepools	major	non-breeding
Marine Neritic	Estuaries	suitable	non-breeding
Marine Neritic	Estuaries	suitable	breeding
Marine Neritic	Macroalgal/Kelp	major	non-breeding
Marine Neritic	Macroalgal/Kelp	major	breeding
Marine Neritic	Seagrass (Submerged)	major	non-breeding
Marine Neritic	Seagrass (Submerged)	major	breeding
Marine Neritic	Subtidal Loose Rock/pebble/gravel	major	non-breeding
Marine Neritic	Subtidal Loose Rock/pebble/gravel	major	breeding
Marine Neritic	Subtidal Rock and Rocky Reefs	major	non-breeding
Marine Neritic	Subtidal Rock and Rocky Reefs	major	breeding
Marine Neritic	Subtidal Sandy	major	non-breeding
Marine Neritic	Subtidal Sandy	major	breeding
Marine Neritic	Subtidal Sandy-Mud	major	non-breeding
Marine Neritic	Subtidal Sandy-Mud	major	breeding
Wetlands (inland)	Permanent Freshwater Lakes (over 8ha)	suitable	breeding
Wetlands (inland)	Permanent Rivers/Streams/Creeks (includes waterfalls)	suitable	non-breeding
Wetlands (inland)	Permanent Rivers/Streams/Creeks (includes waterfalls)	suitable	breeding
Altitude	0 - 1200 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Biological resource use	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Reduced reproductive success, Species mortality
Human intrusions & disturbance	Recreational activities	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Species disturbance
Pollution	Industrial & military effluents - Oil spills	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation, Species mortality

Purpose	Scale
Food - human	subsistence, national

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Recommended citation
BirdLife International (2024) Species factsheet: Flying Steamerduck Tachyeres patachonicus. Downloaded from https://datazone.birdlife.org/species/factsheet/flying-steamerduck-tachyeres-patachonicus on 23/11/2024.
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 23/11/2024.