White-throated Swift (Aeronautes saxatalis) [XC470554]
by from Carrizo Plain National Monument, Santa Margarita, San Luis Obispo County, California, United States (song)
White-throated Swift (Aeronautes saxatalis) [XC482869]
by Leonardo Guzman Hernandez from Mission Trails Regional Park (from visitor center to Old Mission Dam area), San Diego, California, United States (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.