Thamnophilus ambiguus


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Thamnophilus ambiguus
Species Authority: Swainson, 1825
Common Name(s):
English Sooretama Slaty-antshrike, Sooretama Slaty Antshrike, Sooretama Slaty-Antshrike 
Taxonomic Notes: Thamnophilus punctatus (Sibley and Monroe 1990, 1993) has been split into T. punctatus and T. atrinucha following AOU (1998) and T. stictocephalus, T. sticturus, T. pelzelni and T. ambiguus following SACC (2005).

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2012
Date Assessed: 2012-05-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Facilitator/Compiler(s): Pilgrim, J.
This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Geographic Range [top]

Range Description: This species has a large range in coastal south-east Brazil, extending inland in Minas Gerais along the Rio Doce Valley.
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The global population size has not been quantified, but it is believed to be large as the species is described as fairly common in at least parts of its wide range (Zimmer and Isler 2003).
Population Trend: Stable

Habitat and Ecology [top]

Systems: Terrestrial

Citation: BirdLife International 2012. Thamnophilus ambiguus. The IUCN Red List of Threatened Species. Version 2014.3. <>. Downloaded on 29 March 2015.
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