Photo: Dario Sanches from São Paulo, Brasil / CC BY-SA 2.0 (Wikimedia Commons)
Rufous-margined Antwren
Herpsilochmus rufimarginatus
Rufous-margined Antwren (Herpsilochmus rufimarginatus) — Songbirds & Perching Birds of South America.
Found across 4 guides in our atlas — open any for the full checklist, photos and what's around right now.
The Rufous-margined Antwren (Herpsilochmus rufimarginatus) is a member of the Thamnophilidae family found in South America. Adults weigh 10.6 g. The IUCN Red List lists it as Least Concern.
Conservation status
IUCN Red List (opens in a new tab)Widespread and abundant — not currently at risk.
Where it fits
- Class Aves
- Order Passeriformes
- Family Thamnophilidae Antbirds
- Genus Herpsilochmus
- Species rufimarginatus
Where it lives
Eastern, southeastern Brazil, eastern Paraguay and northeastern Argentina
Quick facts
- Weight
- 10.6 g
- Diet
- Invertebrate-eaters
- Family
- Thamnophilidae
- Order
- Passeriformes
- Habitat
- Woodland
How to identify
Similar birds
Not Evaluated
Least Concern
Endangered
Least Concern
Biology & behaviour
Diet
The Rufous-margined Antwren 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 Rufous-margined Antwren is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
The Rufous-margined Antwren (Herpsilochmus rufimarginatus) belongs to the Thamnophilidae family of the order Passeriformes. It is found across South America. Its distribution covers SA e, se Brazil, e Paraguay and ne Argentina.
It is a very small bird. Adults weighs around 10.6 g, with a wing length of about 4.8 cm and a tail of around 4.7 cm.
The IUCN Red List currently assesses it as Least Concern. That category covers species that remain widespread and reasonably abundant in the wild.
The species has a mapped global range of roughly 681,000 km².
Songs & calls
Frequently asked questions
How big is the Rufous-margined Antwren?
The Rufous-margined Antwren is a very small bird that weighs around 10.6 g.
Where does the Rufous-margined Antwren live?
The Rufous-margined Antwren is found across South America with a range covering SA e, se Brazil, e Paraguay and ne Argentina, where it is typically found in wooded and forested habitats.
What family does the Rufous-margined Antwren belong to?
The Rufous-margined Antwren (Herpsilochmus rufimarginatus) belongs to the Thamnophilidae family, in the order Passeriformes.
What does the Rufous-margined Antwren eat?
The Rufous-margined Antwren is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Does the Rufous-margined Antwren migrate?
The Rufous-margined Antwren is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
Is the Rufous-margined Antwren endangered?
The IUCN Red List currently assesses it as Least Concern That category covers species that remain widespread and reasonably abundant in the wild.
What sound does the Rufous-margined Antwren make?
1 real field recording of the Rufous-margined Antwren — 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 Rufous-margined Antwren's range?
The Rufous-margined Antwren has a mapped global range of about 681,000 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
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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.