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

Taxonomic note

Cyanocorax colliei (del Hoyo and Collar 2016) was previously listed as Calocitta colliei.

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2020	Least Concern
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	not a migrant	Forest dependency	medium
Land-mass type		Average mass	234 g

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	271,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	50000-499999 mature individuals	poor	estimated	2019
Population trend	decreasing	-	suspected	-
Generation length	6.7 years	-	-	-

Population justification: The global population is estimated to number 50,000-499,999 mature individuals (Partners in Flight 2019).

Trend justification:

The species is undergoing a small decline (Partners in Flight 2019). A remote-sensing study found that recent forest loss in the species's range was negligible (potentially 1% over three generations; Tracewski et al. 2016).

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

Country/Territory	IBA Name
Mexico	Presa Cajón de Peñas
Mexico	San Juan de Camarones

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Dry	major	resident
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Shrubland	Subtropical/Tropical Dry	major	resident
Altitude	0 - 1700 m	Occasional altitudinal limits

Purpose	Scale
Pets/display animals, horticulture	international

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Recommended citation
BirdLife International (2024) Species factsheet: Black-throated Magpie-jay Cyanocorax colliei. Downloaded from https://datazone.birdlife.org/species/factsheet/black-throated-magpie-jay-cyanocorax-colliei on 23/12/2024.
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 23/12/2024.