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Swift, Vaux's
Bird Info
Bird Info
Conservation status
Scientific Name:
Chaetura vauxi
Alabama, Alaska, Arkansas, Belize, British Columbia, California, Canada, Central America and Caribbean, Central America excluding Mexico, Costa Rica, El Salvador, Florida, Global, Guatemala, Honduras, Illinois, Louisiana, Mexico, Montana, Nevada, Nicaragua, North America, Oregon, Panama, South America, United States, Utah, Venezuela, Washington Read more
Related Reading
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 ...
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This is a small swift, even compared to other Chaetura species, at 10.7 to 11.2 cm long and weighing 18 g. The northern populations are slightly larger at 11.5 cm, probably according to the Bergmann's Rule, and/or migration requirements. It has a cigar-shaped body, crescentic wings and a short bluntly squared-off tail. The head, upperparts and wings are dusky black, and the underparts, rump and tail coverts are greyish brown. The throat is paler grey, becoming whitish in northern birds. The sexes are similar, but juveniles have dusky bases to the throat feathers. ...
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