R Guaporé drainage in north-eastern Bolivia (Beni) and west-central Brazil (extreme western Mato Grosso).
 
Population
Estimated population is unknown (2010).
Status LC
Habitat destruction and degradation through human colonisation of river banks is the main threat.
For more information see BirdLife International Species Factsheet.
Rusty-necked Piculet (Picumnus fuscus) [XC602782]
by Jacob Wijpkema from Pimenteiras do Oeste, Rond\u00f4nia, Brazil (song)
Rusty-necked Piculet (Picumnus fuscus) [XC434315]
by Fabio Olmos from Corumbiara State Park, Pimenteiras do Oeste, State of Rond\u00f4nia, Brazil (drumming)