Photo: Nick Athanas / CC BY-SA 2.0 (Wikimedia Commons)
Bicolored Antvireo
Dysithamnus occidentalis
Bicolored Antvireo (Dysithamnus occidentalis) — Songbirds & Perching Birds of South America.
Found across 6 guides in our atlas — open any for the full checklist, photos and what's around right now.
The Bicolored Antvireo (Dysithamnus occidentalis) is a member of the Thamnophilidae family found in South America. Adults weigh 26.4 g. The IUCN Red List lists it as Near Threatened.
Conservation status
IUCN Red List (opens in a new tab)Close to qualifying for a threatened category in the near future.
Where it fits
- Class Aves
- Order Passeriformes
- Family Thamnophilidae Antbirds
- Genus Dysithamnus
- Species occidentalis
Quick facts
- Weight
- 26.4 g
- Diet
- Invertebrate-eaters
- Family
- Thamnophilidae
- Order
- Passeriformes
- Habitat
- Woodland
How to identify
Similar birds
Least Concern
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Biology & behaviour
Diet
The Bicolored Antvireo is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Behaviour
A bird of dense forest, it spends much of its time perched in trees and shrubs.
Migration
The Bicolored Antvireo is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
The Bicolored Antvireo (Dysithamnus occidentalis) belongs to the Thamnophilidae family of the order Passeriformes. It is found across South America. Its distribution covers SA sw Colombia and n, e Ecuador.
It is a small bird. Adults weighs around 26.4 g, with a wing length of about 6.9 cm and a tail of around 5.6 cm.
The IUCN Red List lists it as Near Threatened. That means it is close to qualifying as threatened and is worth keeping a careful eye on.
Its mapped global range covers an estimated 16,000 km² — a relatively restricted global range.
Songs & calls
Frequently asked questions
How big is the Bicolored Antvireo?
The Bicolored Antvireo is a small bird that weighs around 26.4 g.
Where does the Bicolored Antvireo live?
The Bicolored Antvireo is found across South America with a range covering SA sw Colombia and n, e Ecuador, where it favours woodland, forest and well-treed country.
What family does the Bicolored Antvireo belong to?
The Bicolored Antvireo (Dysithamnus occidentalis) belongs to the Thamnophilidae family, in the order Passeriformes.
What does the Bicolored Antvireo eat?
The Bicolored Antvireo is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Does the Bicolored Antvireo migrate?
The Bicolored Antvireo is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
Is the Bicolored Antvireo endangered?
The IUCN Red List lists it as Near Threatened That means it is close to qualifying as threatened and is worth keeping a careful eye on.
What sound does the Bicolored Antvireo make?
1 real field recording of the Bicolored Antvireo — including its song — can be played in the Songs & calls section on this page, credited to the recordist who captured it.
How large is the Bicolored Antvireo's range?
The Bicolored Antvireo has a mapped global range of about 16,000 km².
Conservation
Every bird benefits from bird-safe windows, native plants, and keeping cats indoors. Small changes at home add up to real protection.
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Guides for this bird
Best Bird Feeders for Garden Songbirds
How to choose a bird feeder for garden songbirds — the feeder styles compared, the seed they prefer, where to hang it, and how to keep birds safe. A decision framework grounded in real data, with no mystery picks.
Meet the Thamnophilidae
A field guide to the Thamnophilidae family — 240 species in the Birbs encyclopedia, with the best-known members to start with.