French: Martinet de Vaux German: Graubauchsegler Spanish: Vencejo de Vaux
Other common names:
Ashy-tailed Swift (andrei, when this race merged with Chaetura meridionalis)
Cypcelus [sic] Vauxi
J. K. Townsend
Fort Vancouver, Washington, USA
Subspecies and Distribution
C. v. vauxi
(J. K. Townsend, 1839) – Vaux’s Swift – W North America from SW Canada (British Columbia) S in W USA to C California; winters in Mexico and Guatemala to Honduras.
C. v. tamaulipensis
Sutton, 1941 – E Mexico (S Tamaulipas and SE San Luis Potosí).
C. v. gaumeri
Lawrence, 1882 – Yucatan Swift – Yucatán Peninsula and Cozumel I.
C. v. warneri
A. R. Phillips, 1966 – W Mexico (S Sinaloa to Oaxaca).
C. v. richmondi
Ridgway, 1910 – Richmond’s Swift – S Mexico (from S Veracruz) S to Costa Rica and W Panama (Bocas del Toro and Chiriquí).
C. v. ochropygia
Aldrich, 1937 – C Panama E to Canal area, including Coiba I and Pearl Is.
C. v. andrei
Berlepsch & E. J. O. Hartert, 1902 – Andre’s Swift – N Venezuela, including Orinoco Valley.
12–13·5 cm; 15·25–22 g (race andrei). Medium-sized swift with short square tail, rectrix spines up to 8 mm beyond web, protruding head and... read more
Main calls are a characteristic series of short single notes “tsip..tsip..tsip...tsip...tsip...” (... read more
Found over wide range of habitats, including cloudforest at 1000 m in N Venezuela, arid areas of... read more
Food and feeding
Often forages in large numbers, also with hirundines and other swifts; race andrei usually observed in small numbers,... read more
Mating displays seen and enlarged gonads in specimens taken in Mar–Apr in Panama; breeds Mar/Apr–Jul in Costa Rica, and May... read more
Nominate race a migrant, present in far N of range May to mid-Sept, exceptionally late Mar on coast... read more
Status and conservation
Not globally threatened(Least Concern). Common throughout most of range, though often locally, e.g. in Montana during 1970s considered common in Idaho county while rare in... read more
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