Bicolored Antvireo
NameBicolored Antvireo
Common NameBicolored Antvireo
Scientific NameDysithamnus occidentalis
FamilyThamnophilidae
Wingspan (cm)19
Length (cm)12.5
Weight (g)17.5
Plumage DetailsMales are dark slate-gray overall, with prominent white spots on the median and greater wing coverts. The iris is dark. Females are similar but exhibit a brownish wash, particularly on the flanks and undertail coverts.
Vocalization / CallIts vocalization is a series of clear, short whistles that often accelerate and rise in pitch, described as 'pee-pee-pee-PEE-PEE-PEE-pew-pew'. It also gives a sharp 'chip' note.
Primary Dietinsectivore
Primary Habitatsforest, mountain
Conservation Statusleast-concern
Geographic RangeThe Bicolored Antvireo is found in disjunct populations across the Andes of Colombia, Ecuador, and northern Peru.
Identifying Featuressmall size, dark slate-gray plumage (male), white wing spots, dark iris, frequents humid montane forest understory, often in mixed-species flocks
Description
The Bicolored Antvireo is a small, dark antbird found in the understory and mid-story of humid montane forests. Males are characterized by their dark slate-gray plumage with distinctive white wing spots. They typically forage for insects, often as part of mixed-species flocks.
