Red-shouldered Hawk (Buteo) [XC673003]
by David A. Brinkman from Green Township (near Cincinnati), Hamilton County, Ohio, United States (call)
Red-shouldered Hawk (Buteo lineatus) [XC569470]
by Jonathan Klizas from South end of Lakeview Rd, Bloomington, Hennepin County, Minnesota, United States (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.