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

Taxonomic note
Nycticryphes semicollaris (del Hoyo and Collar 2014) was previously placed in the genus Rostratula.

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
-	-	C2a(ii)

Red List history

Year	Category	Criteria
2024	Near Threatened	C2a(ii)
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	not a migrant	Forest dependency	does not normally occur in forest
Land-mass type		Average mass	77 g

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	4,330,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	8000-100000, 10000-50000 mature individuals	poor	estimated	-
Population trend	decreasing	-	inferred	-
Generation length	4.72 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: Difficult to estimate due to its cryptic habits and very low detectability. Estimated in 2012 to number 25,000-100,000 (Unterkofler and Blanco 2012, Wetlands International 2012). More recently, Lesterhuis et al. (in prep.) estimated a minimum of 8,000 individuals, but conceded 'its population might be considerably larger'. The global population is here estimated to be 8,000-100,000, to encapsulate the uncertainty in these presented estimates, but with a best estimate of 10,000-50,000, reflecting the fact that this species is very probably highly overlooked.

Trend justification: Trends are not well understood, but there is evidence that this is probably declining. In Chile, which represents a significant proportion of this species' range, declines have been reported at localities it was once found to be common (see Gutiérrez and González 2022). While it is possible that these local reports of disappearances may refer to displacements (with birds shifting to other sites), they are precautionarily inferred to represent declines given the scale of land-use change and habitat loss across its range (Cuevas 2017).

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Argentina	extant	native	yes
Bolivia	possibly extant	native
Brazil	extant	native	yes
Chile	extant	native	yes
Paraguay	extant	native	yes
Uruguay	extant	native	yes

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Pastureland	marginal	resident
Grassland	Subtropical/Tropical Seasonally Wet/Flooded	major	resident
Wetlands (inland)	Bogs, Marshes, Swamps, Fens, Peatlands	major	resident
Wetlands (inland)	Permanent Rivers/Streams/Creeks (includes waterfalls)	major	resident
Wetlands (inland)	Seasonal/Intermittent Freshwater Lakes (over 8ha)	suitable	resident
Wetlands (inland)	Seasonal/Intermittent Freshwater Marshes/Pools (under 8ha)	suitable	resident
Altitude	0 - 1500 m	Occasional altitudinal limits	(max) 2750 m

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Shifting agriculture	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Small-holder grazing, ranching or farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation
Biological resource use	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Past, Unlikely to Return		Minority (<50%)		No decline		Past Impact
		Stresses Species mortality
Natural system modifications	Fire & fire suppression - Increase in fire frequency/intensity	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation

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Recommended citation
BirdLife International (2024) Species factsheet: South American Painted-snipe Nycticryphes semicollaris. Downloaded from https://datazone.birdlife.org/species/factsheet/south-american-painted-snipe-nycticryphes-semicollaris on 18/12/2024.
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 18/12/2024.