Argentina, Bolivia, Brazil, Ecuador, French Guiana, Guyana, Paraguay, Suriname.
Locally in the Guianas, through eastern Brazil (Amazonia west to R Branco and R Purús) south to eastern Bolivia (Santa Cruz), Paraguay and northern Argentina (Misiones, Jujuy and Salta).
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Rufous-thighed Kite (Harpagus diodon) [XC176502]
by JAYRSON ARAUJO DE OLIVEIRA from Sitio Tomio, Salete, Santa Catarina State, Brazil (flight call, song)
Rufous-thighed Kite (Harpagus diodon) [XC549387]
by id from Forestal Belga (Cruce Caballero), San Pedro, Misiones, Argentina (song)
Subspecies
Plumage shows very close resemblance to Bicolored Hawk (Accipiter bicolor), perhaps suggesting protective mimicry.