Tamaulipas Crow (Corvus imparatus) - BirdLife species factsheet

Tamaulipas Crow Corvus imparatus

Current view: Data table and detailed info

Taxonomy

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.

IUCN Red List criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2020	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

Species attributes

Migratory status	not a migrant	Forest dependency	medium
Land-mass type		Average mass	221 g

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	125,000 km²	medium
Extent of Occurrence (non-breeding)	140,000 km²	medium
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	200000 mature individuals	poor	estimated	2009
Population trend	decreasing	-	suspected	-
Generation length	4.7 years	-	-	-

Population justification: The global population is estimated to number 200,000 mature individuals (Partners in Flight 2019).

Trend justification: The species is undergoing a moderate decline (Eitniear 2014, Partners in Flight 2019).

Country/territory distribution

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

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Mexico	Desembocadura del Río Soto La Marina
Mexico	Parras de la Fuente
Mexico	Tlanchinol y Bosques de Montaña del Noreste de Hidalgo

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Arable Land	suitable	resident
Artificial/Terrestrial	Pastureland	suitable	resident
Artificial/Terrestrial	Urban Areas	suitable	resident
Forest	Subtropical/Tropical Dry	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	major	resident
Altitude	0 - 900 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: Tamaulipas Crow Corvus imparatus. Downloaded from https://datazone.birdlife.org/species/factsheet/tamaulipas-crow-corvus-imparatus 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.