• 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.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2024	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	full migrant	Forest dependency	does not normally occur in forest
Land-mass type		Average mass	47 g

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	24,700,000 km2	medium
Extent of Occurrence (non-breeding)	22,400,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	2400000-5500000 mature individuals	poor	estimated	2020
Population trend	decreasing	-	estimated	-
Generation length	3.81 years	-	-	-

Population justification: The global population has been estimated at 14,000,000 mature individuals (Partners in Flight 2020). In North America (USA and Canada), the total population size is estimated at 3,800,000 mature individuals (Partners in Flight 2020). In North America (USA and Canada), the species population is estimated to have a slightly negative trend, which equates to a small decline in population size over three generations (11.43 years) (Partners in Flight 2024). Based on this data, and the proportion of the species' global range that this region holds, the global population size is considered to be decreasing slowly over three generations.

Trend justification: This species has undergone a small or statistically insignificant increase over the last 40 years in North America (data from Breeding Bird Survey and/or Christmas Bird Count: Butcher and Niven 2007). Note, however, that these surveys cover less than 50% of the species's range in North America.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Belize	extant	native			yes
Bolivia	extant	native
Brazil	extant	native
Canada	extant	native
Chile	extant	native
Colombia	extant	native
Costa Rica	extant	native			yes
Ecuador	extant	native
El Salvador	extant	native
French Guiana	extant	native
Guatemala	extant	native
Guyana	extant	native
Honduras	extant	native
Mexico	extant	native
Nicaragua	extant	native
Panama	extant	native
Paraguay	extant	native
Peru	extant	native
Suriname	extant	native
Trinidad and Tobago	extant	native
USA	extant	native		yes
Venezuela	extant	native

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	non-breeding
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	breeding
Grassland	Subtropical/Tropical Seasonally Wet/Flooded	suitable	non-breeding
Grassland	Subtropical/Tropical Seasonally Wet/Flooded	suitable	breeding
Shrubland	Subtropical/Tropical Dry	major	non-breeding
Shrubland	Subtropical/Tropical Dry	major	breeding
Shrubland	Subtropical/Tropical High Altitude	suitable	non-breeding
Shrubland	Subtropical/Tropical High Altitude	suitable	breeding
Altitude	0 - 2500 m	Occasional altitudinal limits

Purpose	Scale
Other household goods	subsistence, national

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Recommended citation
BirdLife International (2024) Species factsheet: Lesser Nighthawk Chordeiles acutipennis. Downloaded from https://datazone.birdlife.org/species/factsheet/lesser-nighthawk-chordeiles-acutipennis on 22/12/2024.
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 22/12/2024.