Mexican Whip-poor-will Antrostomus arizonae


Taxonomic note
Antrostomus arizonae (del Hoyo and Collar 2014) was previously placed in the genus CaprimulgusCaprimulgus vociferus (Sibley and Monroe 1990, 1993) was previously split into C. vociferus and C. arizonae following AOU (2010).

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.

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
2011 Least Concern
2008 Not Recognised
2004 Not Recognised
2000 Not Recognised
1994 Not Recognised
1988 Not Recognised
Species attributes

Migratory status full migrant Forest dependency High
Land mass type Average mass -

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 3,370,000
Extent of Occurrence non-breeding (km2) 1,470,000
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 320000 poor estimated 2019
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 - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 3.6 - - -

Population justification: The global population is estimated to number 320,000 mature individuals (Partners in Flight 2019). The species is considered to be fairly common to common.

Trend justification:

The species is undergoing a moderate decline (Partners in Flight 2019), which is thought to be caused by low levels of habitat loss (Tracewski et al. 2016).

Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
El Salvador N Extant Yes
Guatemala N Extant Yes
Honduras N Extant Yes
Mexico N Extant Yes Yes
USA N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Mexico Lago de Pátzcuaro
Mexico Tancítaro
Mexico Sierra de Miahuatlán
Mexico La Cima
Mexico Sur del Valle de México
Mexico Sierra de Taxco - Nevado de Toluca
Mexico Acahuizotla - Agua del Obispo
Mexico Omiltemi
Mexico Coalcomán - Pómaro
Mexico Tlaxiaco
Mexico Nevado de Colima
Mexico La Malinche
Mexico Tacámbaro
Mexico Sierra de Manantlán
Mexico Sierra de Arteaga
Mexico Las Bufas
Mexico Río Presidio - Pueblo Nuevo
Mexico San Antonio Peña Nevada
Mexico Piélagos
Mexico Lagos de Montebello
Mexico El Triunfo
Mexico Montañas del Norte de Chiapas
Mexico Mesa de Guacamayas
Mexico Cebadillas
Mexico Maderas Chihuahua
Mexico Monte Escobedo
Mexico Sierra Norte
Mexico Sierra de Valparaiso
Mexico Sierra Chincua
Mexico Cerros de San Cristóbal de las Casas
Mexico El Tacaná
Mexico Cerros de Chalchihuitán

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry major resident
Forest Subtropical/Tropical Moist Montane suitable non-breeding
Altitude 1400 - 3000 m Occasional altitudinal limits (min) 500 m

Recommended citation
BirdLife International (2021) Species factsheet: Antrostomus arizonae. Downloaded from on 16/10/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from on 16/10/2021.