Red-shouldered Hawk (Buteo lineatus) [XC562447]
by Brian Hendrix from Hendrix Habitat - Fairview, Williamson County, Tennessee, United States (song)
Red-shouldered Hawk (Buteo lineatus) [XC169242]
by Nick Komar from Tosohatchee Wildlife Management Area, Orange County, Florida, United States (flight call)
Subspecies
Sometimes placed in Asturina. Apparently close to Ridgway's Hawk (Buteo ridgwayi), Roadside Hawk (Rupornis magnirostris) and, to a lesser extent, Grey-lined Hawk (Buteo nitidus).
The following 5 subspecies are recognised:
elegans Cassin, 1855 - Southern Oregon (north-western USA) to northern Baja California (Mexico).
lineatus (Gmelin, 1788) - Eastern North America, from southern Canada to central USA.