Argentina, Belize, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, El Salvador, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Suriname, USA, Venezuela.
Population
Estimated population is 500,000 - 4,999,999 (2010).
Collared Forest Falcon (Micrastur semitorquatus) [XC712945]
by GABRIEL LEITE from Laurentino, State of Santa Catarina, Brazil (call, song)
Collared Forest Falcon (Micrastur semitorquatus) [XC691913]
by Ricardo Jos\u00e9 Mitidieri from Barra Copalita, Santa Mar\u00eda Huatulco, Oaxaca, Mexico (song)
Subspecies
Sometimes, especially in past, considered to include Buckley's Forest-falcon (Micrastur buckleyi).
The following 2 subspecies are recognised:
naso (Lesson, R, 1842) - North-central Mexico (Sinaloa to Tamaulipas) south through Central America to northern and western Colombia and Ecuador.
semitorquatus (Vieillot, 1817) - Eastern Colombia east to the Guianas, and south through eastern Peru, northern and eastern Bolivia and Brazil to Paraguay and northern Argentina.