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

Justification of Red List category
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence under 20,000 km² combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (under 10,000 mature individuals with a continuing decline estimated to be over 10% in ten years or three generations, or with a specified population structure). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (over 30% decline over ten years or three generations). For these reasons the species is evaluated as Least Concern.

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.

Text account compilers
Rutherford, C.A.

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.