Justification of Red List Category
This species was thought to have a moderately small range which was suspected to be decreasing owing to habitat loss, and within which it was known from few locations. It was consequently classified as Near Threatened. Its range was remapped in 2010 and found to be well above the threshold at which a species may be considered Vulnerable. It has therefore been downlisted to Least Concern.
This is a poorly known species and no population estimates are available.
This species is suspected to lose 12-20.7% of suitable habitat within its distribution over three generations (13 years) based on a model of Amazonian deforestation (Soares-Filho et al. 2006, Bird et al. 2011). It is therefore suspected to decline by <25% over three generations.
Picumnus fuscus has a moderately small range in várzea forest along the río Guaporé (Iténez) in Beni and Santa Cruz (Noel Kempff Mercado National Park), Bolivia and Rondônia, Brazil (Short 1982, Parker and Rocha 1991, Killeen and Schulenberg 1998). It is poorly known, but observations suggest that it may be relatively common.
It is restricted to várzea forest, where it may favour vine tangles and bamboo (Parker and Rocha 1991).
The río Guaporé is largely uninhabited, and almost continuously forested (Parker and Rocha 1991), but by 1996 there was increasing human colonisation of river banks in the west of the species' range (T. E. H. Stuart in litt. 1998).
Conservation Actions Underway
It occurs in Noel Kempff Mercado National Park, Bolivia.
Text account compilers
Benstead, P., Capper, D., Sharpe, C J, Stuart, T.
BirdLife International (2019) Species factsheet: Picumnus fuscus. Downloaded from http://www.birdlife.org on 16/06/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 16/06/2019.