Western Red-necked Araçari Pteroglossus sturmii


Justification of Red List Category

Based on a model of future deforestation in the Amazon basin, it is suspected that the population of this newly-split species will decline by 25-30% over the next three generations, and it has therefore been classified as Near Threatened.

Population justification
The global population size has not been quantified, but this species is described as 'fairly common' (Stotz et al. 1996).

Trend justification
This species is suspected to lose 35.4-47% of suitable habitat within its distribution over three generations (21 years) based on a model of Amazonian deforestation (Soares-Filho et al. 2006, Bird et al. 2011). However, given the species shows a degree of tolerance of habitat degradation and fragmentation (A. Lees in litt. 2011), it is suspected to decline by 25-29% over three generations.

Distribution and population

Pteroglossus sturmii occurs in east-central South America, restricted to the area south of the Amazon. Its distribution is bounded by Rio Madeira and Rio Tapajós, Brazil, to the west and east respectively, and it ranges south as far as the states of Rondônia and Mato Grosso. It reaches Bolivia, where it is present in Noel Kempff Mercado National Park.


This species inhabits moist tropical forest, gallery forest and some cerrado (dry savanna woodland) up to c.550 m, and appears to show some tolerance of secondary habitat (del Hoyo et al. 2002).


Although the species shows some tolerance of habitat fragmentation and degradation, the extent of projected deforestation in its known range is sufficient to pose a threat (Soares-Filho et al. 2006, Bird et al. 2011, A. Lees in litt. 2011). Proposed changes to the Brazilian Forest Code reduce the percentage of land a private landowner is legally required to maintain as forest (including, critically, a reduction in the width of forest buffers alongside perennial steams) and include an amnesty for landowners who deforested before July 2008 (who would subsequently be absolved of the need to reforest illegally cleared land) (Bird et al. 2011).

Conservation actions

Conservation Actions Underway
None is known.

Conservation Actions Proposed

Expand the protected area network to effectively protect IBAs. Effectively resource and manage existing and new protected areas, utilising emerging opportunities to finance protected area management with the joint aims of reducing carbon emissions and maximizing biodiversity conservation. Conservation on private lands, through expanding market pressures for sound land management and preventing forest clearance on lands unsuitable for agriculture, is also essential (Soares-Filho et al. 2006). Campaign against proposed changes to the Brazilian Forest Code that would lead to a decrease in the width of the areas of riverine forest protected as Permanent Preservation Areas (APPs), which function as vital corridors in fragmented landscapes.


36 cm. Small, colourful toucan. Green and yellow with a red rump, red nape and upper back, and a broad red chest patch.


Text account compilers
Butchart, S., Ekstrom, J., Khwaja, N. & Symes, A.

Lees, A.

Recommended citation
BirdLife International (2020) Species factsheet: Pteroglossus sturmii. Downloaded from http://www.birdlife.org on 30/09/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 30/09/2020.