Buff-collared Nightjar (Antrostomus ridgwayi) [XC142123]
by Ryan P. O'Donnell from Coronado National Forest (near Green Valley), Pima, Arizona, United States (song)
Buff-collared Nightjar (Antrostomus ridgwayi) [XC446743]
by Richard E. Webster from Ca\u00f1\u00f3n Cieneguilla, Alamos, Sonora, MX, Mexico (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.