LC
Aztec Thrush Ridgwayia pinicola



Taxonomy

Taxonomic note
Ridgwayia pinicola (del Hoyo and Collar 2016) was previously listed as Zoothera pinicola.

Taxonomic source(s)
AOU. 1998. Check-list of North American birds. American Ornithologists' Union, Washington, D.C.
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.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
Stotz, D. F.; Fitzpatrick, J. W.; Parker, T. A.; Moskovits, D. K. 1996. Neotropical birds: ecology and conservation. University of Chicago Press, Chicago.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
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 High
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 772,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals poor estimated 2009
Population trend Decreasing suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Largest subpopulations - - -

Population justification: Partners in Flight estimated the population to number fewer than 50,000 individuals (A. Panjabi in litt. 2008), thus it is placed in the band 20,000-49,999 individuals here.

Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction and fragmentation.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Mexico N Extant Yes
USA V Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Mexico Acahuizotla - Agua del Obispo
Mexico Cebadillas
Mexico Cerro El Viejo – Puerto Purificación
Mexico Corredor de Barrancas de la Sierra Madre Occidental
Mexico El Carricito
Mexico Guacamayita
Mexico La Cima
Mexico La Malinche
Mexico Las Bufas
Mexico Maderas Chihuahua
Mexico Monte Escobedo
Mexico Nevado de Colima
Mexico Omiltemi
Mexico Papigochi
Mexico Piélagos
Mexico Quebradas de Sinaloa, Nayarit y Durango
Mexico Río Presidio-Pueblo Nuevo
Mexico Selvas Nayaritas
Mexico Sierra Chincua
Mexico Sierra de Atoyac y Bosques de Niebla de la Costa Grande
Mexico Sierra de Manantlán
Mexico Sierra de Miahuatlán
Mexico Sierra de Taxco-Nevado de Toluca
Mexico Sierra de Valparaiso
Mexico Sierra de Zongolica y Tenango
Mexico Sierra Norte
Mexico Sur del Valle de México
Mexico Tacámbaro
Mexico Tancítaro
Mexico Tlanchinol y bosques de montaña del noreste de Hidalgo

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane major resident
Altitude 1800 - 3500 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2019) Species factsheet: Ridgwayia pinicola. Downloaded from http://www.birdlife.org on 15/11/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 15/11/2019.