• 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
2023	Near Threatened	A2cd+3cd+4cd
2016	Near Threatened	A2cd+3cd+4cd
2012	Near Threatened	A2cd+3cd+4cd
2008	Near Threatened	A2c,d; A3c,d; A4c,d
2004	Near Threatened
2000	Lower Risk/Near Threatened
1994	Lower Risk/Near Threatened
1988	Threatened

Migratory status	not a migrant	Forest dependency	medium
Land-mass type	continent	Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	2,230,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	10000-19999 mature individuals	poor	suspected	2018
Population trend	decreasing	poor	inferred	2016-2032
Rate of change over the past 10 years/3 generations (longer of the two periods)	20-29%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	20-29%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	20-29%	-	-	-
Generation length	5.38 years	-	-	-
Number of subpopulations	2-100	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: The population size has not been quantified. Subspecies zabele is suspected to number less than 10,000 mature individuals (ICMBio 2018). While the size of the nominate subspecies noctivagus is unknown, observational records (per eBird 2022) suggest that it may be of roughly equal size. Tentatively, the overall population is therefore here placed in the band 10,000-19,999 mature individuals.

Trend justification: In the past the species was considered common, but is now described as rare and local (ICMBio 2018). Despite its tolerance of secondary habitats, population declines are attributed to habitat loss and degradation as well as the impacts of hunting (ICMBio 2018, Cabot et al. 2020). While declines in subspecies noctivagus are not thought to exceed 20% over three generations (16.1 years), subspecies zabele is suspected to decline at a rate of >30% over three generations and to suffer local extinctions (ICMBio 2018, Las-Casas et al. 2019). Tree cover within the range is lost at a rate of 13% over three generations (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Even though the species is not strictly dependent on forests it appears negatively affected by large-scale habitat degradation (ICMBio 2018). The impact of hunting has not been quantified. Tentatively, the overall population decline is here placed in the band 20-20% over three generations.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Brazil	extant	native	yes

Country/Territory	IBA Name
Brazil	Boa Nova / Serra da Ouricana
Brazil	Botumirim
Brazil	Chapada do Araripe
Brazil	Estação Ecológica de Juréia-Itatins
Brazil	Januária
Brazil	Mocambinho
Brazil	Parque Estadual da Serra do Mar (entre Pedro de Toledo e Cubatão)
Brazil	Parque Nacional da Chapada Diamantina
Brazil	Parque Nacional da Serra das Confusões
Brazil	Raso da Catarina
Brazil	Sento Sé / Campo Formoso
Brazil	Serra de Bonito
Brazil	Sooretama / Linhares
Brazil	Vale do Peruaçu
Brazil	Vitória da Conquista

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Savanna	Dry	suitable	resident
Shrubland	Subtropical/Tropical Dry	suitable	resident
Altitude	0 - 700 m	Occasional altitudinal limits	(max) 1050 m

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Agro-industry 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
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Species mortality
Biological resource use	Logging & wood harvesting - Unintentional effects: (large scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation

Purpose	Scale
Food - human	subsistence, national

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Recommended citation
BirdLife International (2024) Species factsheet: Yellow-legged Tinamou Crypturellus noctivagus. Downloaded from https://datazone.birdlife.org/species/factsheet/yellow-legged-tinamou-crypturellus-noctivagus 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.