Vaux's Swift (Chaetura vauxi) | Details

Vaux's Swift Chaetura vauxi

Current view: Data table and detailed info

Taxonomy

Taxonomic note
Chaetura vauxi (del Hoyo et al. 2014) has been split into Vaux's Swift C. vauxi, including form aphanes from NE Venezuela, and Andre's Swift C. andrei (Handbook of the Birds of the World and BirdLife International 2020) following a review of the relationships within Chaetura and investigation of the morphological characters within the group (Chesser et al. 2018).

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2020. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 5. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v5_Dec20.zip.

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	Not Recognised
2012	Not Recognised
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

Species attributes

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

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	8,450,000 km²
Extent of Occurrence (non-breeding)	2,530,000 km²
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	860000 mature individuals	poor	estimated	2020
Population trend	decreasing	-	estimated	-
Rate of change over the past 10 years/3 generations (longer of the two periods)	4%	-	-	-
Generation length	2.4 years	-	-	-

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.

Country/territory distribution

Country/Territory	Presence	Origin	Resident	Breeding visitor	Passage migrant
Belize	extant	native	yes
Canada	extant	native		yes
Costa Rica	extant	native	yes
El Salvador	extant	native	yes
Guatemala	extant	native	yes
Honduras	extant	native	yes
Mexico	extant	native	yes		yes
Nicaragua	extant	native	yes
Panama	extant	native	yes
USA	extant	native		yes	yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
USA	Vaux's Swift Chimney Corridor

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	non-breeding
Artificial/Terrestrial	Urban Areas	suitable	breeding
Forest	Subtropical/Tropical Dry	suitable	non-breeding
Forest	Subtropical/Tropical Moist Lowland	major	non-breeding
Forest	Subtropical/Tropical Moist Montane	suitable	non-breeding
Forest	Temperate	major	breeding
Altitude	0 - 1800 m	Occasional altitudinal limits

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.