White-throated Swift (Aeronautes saxatalis) [XC571036]
by Thomas G. Graves from Kwaamii Point, near Mt. Laguna, San Diego County, California, United States (call, flight call)
White-throated Swift (Aeronautes saxatalis) [XC289036]
by Denise Wight from San Miguel de Allende, Jardin Botanico, Mexico (flight call)
Subspecies
Closely related to White-tipped Swift (Aeronautes montivagus).
The following 2 subspecies are recognised:
saxatalis Woodhouse, 1853 - South-western Canada south through western USA to southern Mexico (Oaxaca) west of Caribbean lowlands.
nigrior Dickey & van Rossem, 1928 - Southern Mexico (Chiapas) to central Honduras.