Eastern slope of Andes in Ecuador (Napo south to at least Morona Santiago, perhaps to Zamora-Chinchipe) and Peru (San Martín, and from Huánuco south to northern Junín).
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is unknown (2010).
Habits
Singly or in pairs. Occasionally observed with other species, usually inconspicuous.
Voice
A distinctive loud 'swee-swee-swee' with 10-12 notes repeated. Scrub Greenlet (Hylophilus flavipes) either has a disyllabic note, eg 'turee-turee-turee' repeated 4-20 times, or a more slurred, slower double note in Central America.
Olivaceous Greenlet (Hylophilus olivaceus) [XC208693]
by Jerome Fischer from Copalinga Lodge (Zamora - Zamora Chinchipe), Ecuador (song)
Olivaceous Greenlet (Hylophilus olivaceus) [XC261030]
by Robert S. Ridgely from Napo: Cascada San Rafael ('Coca Falls'), Ecuador (song)
Subspecies
No subspecies.
Forms a superspecies with Scrub Greenlet (Hylophilus flavipes) and sometimes considered conspecific.
Similar Species
Sometimes considered conspecific with Scrub Greenlet (Hylophilus flavipes) and the two are very alike. Scrub Greenlet (Hylophilus flavipes) may be darker on forecrown, and paler greyish white on the chin and throat.
References
See References.
BirdLife International Species Factsheet