• 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 <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). 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 (>30% decline over ten years or three generations). The population size is very large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Population justification
The global population is thought to number roughly 860,000 mature individuals (see Partners in Flight 2019).

Trend justification
The species has been undergoing a moderate decline between 1970 and 2017, on average by 1.1% per year (Partners in Flight 2019). This would roughly equate to a decrease of 10.5% over ten years. Between 2007 and 2017, the population has been declining with a non-significant, estimated annual decrease of 0.42% (3.09% decrease to 2.64% increase) (North American Breeding Bird Survey; Pardieck et al. 2018). Extrapolating the reduction to 2020, the rate of decline would amount to 4% over the past ten years, although this number is non-significant.

Text account compilers
Hermes, C.

Recommended citation
BirdLife International (2024) Species factsheet: Vaux's Swift Chaetura vauxi. Downloaded from https://datazone.birdlife.org/species/factsheet/vauxs-swift-chaetura-vauxi on 03/12/2024.
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 03/12/2024.