Bicolored Antvireo Dysithamnus occidentalis

Family: Thamnophilidae (Typical Antbirds)

Authority: (Chapman, 1923)

Red List Category

Criteria: B1ab(i,ii,iii,v);C2a(i)

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Justification of Red List category
This species has a small range and fragmented distribution in which habitat continues to decline. It is also rare, and thus its population is suspected to be small, with very small, localised subpopulations likely to be declining in line with habitat loss. It therefore qualifies as Vulnerable.

Population size: 1500-7000

Population trend: Decreasing

Extent of occurrence (breeding/resident): 180,000 km2

Country endemic: No

Land-mass type - continent
Realm - Neotropical
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2022) Species factsheet: Dysithamnus occidentalis. Downloaded from on 05/10/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from on 05/10/2022.