White-throated Swift (Aeronautes saxatalis) [XC362533]
by Patrick Turgeon from Colorado National Monument, Mesa County, Colorado, United States (flight call)
White-throated Swift (Aeronautes saxatalis) [XC727099]
by Nick Komar from Lagunillas, Santiago, Nuevo Leon, Mexico (song)
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.