South-western Colombia (Cauca, NariƱo) and north-western Ecuador (Esmeraldas).
 
Population
Estimated population is 10,000 - 19,999 (2010) and decreasing.
Status VU
Habitat destruction and degradation through logging and conversion to agriculture are the main threats.
For more information see BirdLife International Species Factsheet.
Voice
Song is a single, lamenting bark repeated frequently, usually at dawn. A cackling call uttered in alarm.
Plumbeous Forest Falcon (Micrastur plumbeus) [XC275183]
by Patricio Mena Valenzuela from Esmeraldas: R\u00edo Negro Chico, S of Alto Tambo, Ecuador (duet)
Plumbeous Forest Falcon (Micrastur plumbeus) [XC62725]
by Olaf Jahn from Reserva Mangaloma, Pichincha, Ecuador (song)
Subspecies
Has been included within Lined Forest-falcon (Micrastur gilvicollis). Sympatric with subspecies interstes of Barred Forest-falcon (Micrastur ruficollis).
No subspecies.
Similar Species
Barred Forest-falcon (Micrastur ruficollis) has 2 - 3 tail-bands, yellowish cere and legs, and is proportionally longer tailed and shorter winged.
References
See References.