Buff-collared Nightjar (Antrostomus ridgwayi) [XC407640]
by Richard E. Webster from Departamento de La Paz, El Salvador (song)
Buff-collared Nightjar (Antrostomus ridgwayi) [XC282213]
by theroamingfro from Lower California Gulch, Santa Cruz County, Arizona, United States (song)
Subspecies
The following 2 subspecies are recognised:
ridgwayi (Nelson, 1897) - Extreme south-western USA and western and southern Mexico.
troglodytes (Griscom, 1930) - Central Guatemala, central Honduras and central Nicaragua.