• 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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2021	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	not a migrant	Forest dependency	medium
Land-mass type		Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	291,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	50000-500000 mature individuals	poor	suspected	2019
Population trend	decreasing	-	suspected	-
Generation length	4.4 years	-	-	-

Population justification: The total population is suspected to number 50,000-500,000 mature individuals (Partners in Flight 2019; see also Panjabi et al. 2019).

Trend justification: The species is suspected to be have undergone a moderate to large population decrease since 1970 (Partners in Flight 2019; see also Panjabi et al. 2019), because its limited range and reliance upon tropical deciduous forests make it vulnerable to any habitat degradation or destruction (del Hoyo et al. 1994).

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

Country/Territory	IBA Name
Mexico	Cuenca Baja del Río Papagayo
Mexico	Laguna de Chacahua - Pastoría
Mexico	Presa Cajón de Peñas
Mexico	Tancítaro

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Plantations	suitable	resident
Forest	Subtropical/Tropical Dry	major	resident
Forest	Subtropical/Tropical Mangrove Vegetation Above High Tide Level	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	marginal	resident
Forest	Subtropical/Tropical Moist Montane	marginal	resident
Altitude	0 - 1800 m	Occasional altitudinal limits

Purpose	Scale
Food - human	subsistence, national
Pets/display animals, horticulture	international

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Recommended citation
BirdLife International (2024) Species factsheet: West Mexican Chachalaca Ortalis poliocephala. Downloaded from https://datazone.birdlife.org/species/factsheet/west-mexican-chachalaca-ortalis-poliocephala 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.