Central Brazil (from just south of Amazon, in eastern Amazonas and Pará, south to eastern Rondônia and central Mato Grosso) and eastern Bolivia (north-eastern Santa Cruz).
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).
Status NT
Habitat destruction, degradation and fragmentation due to deforestation as land is cleared for cattle ranching and soy production, facilitated by expansion of the road network, is the main threat.
For more information see BirdLife International Species Factsheet.
Habits
Often associates with mixed-flocks.
Voice
A loud series of notes on the same pitch, slower and more separate than the trill of Grey-mantled Wren (Odontorchilus branickii). Call is a high-pitched 'swee'.
Tooth-billed Wren (Odontorchilus cinereus) [XC755292]
by Jarrod Swackhamer from Sinop, MT 423 Rio de Maria, Mato Grosso, Brazil (song)
Tooth-billed Wren (Odontorchilus cinereus) [XC340442]
by Bobby Wilcox from Cristalino Jungle Lodge, MT, Brazil (song)
Subspecies
No subspecies.
Sometimes regarded as conspecific with Grey-mantled Wren (Odontorchilus branickii), but the two differ significantly in song and habitat.
Similar Species
Previously considered conspecific with Grey-mantled Wren (Odontorchilus branickii), which has darker and more heavily streaked crown and face and typically has more bars along the length of the tail. Also differs in habitat and vocalisations.
References
See References.
BirdLife International Species Factsheet