Photo: https://www.flickr.com/photos/jquental / CC BY 2.0 (Wikimedia Commons)
Sincora Antwren
Formicivora grantsaui
Sincora Antwren (Formicivora grantsaui) — Songbirds & Perching Birds of South America.
Found across 2 guides in our atlas — open any for the full checklist, photos and what's around right now.
The Sincora Antwren (Formicivora grantsaui) is a member of the Thamnophilidae family found in South America. Adults weigh 10 g. The IUCN Red List lists it as Vulnerable.
Conservation status
IUCN Red List (opens in a new tab)Facing a high risk of extinction in the wild.
Where it fits
- Class Aves
- Order Passeriformes
- Family Thamnophilidae Antbirds
- Genus Formicivora
- Species grantsaui
Quick facts
- Weight
- 10 g
- Diet
- Invertebrate-eaters
- Family
- Thamnophilidae
- Order
- Passeriformes
How to identify
Similar birds
Least Concern
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Biology & behaviour
Diet
The Sincora Antwren is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Behaviour
Where it spends much of its time perched among vegetation.
Migration
The Sincora Antwren is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
The Sincora Antwren (Formicivora grantsaui) is a species of bird in the Thamnophilidae family, part of the order Passeriformes. It is found across South America. Its distribution covers SA ne Brazil.
It is a very small bird. Adults weighs around 10 g, with a wing length of about 5 cm and a tail of around 5.8 cm.
It is classified as Vulnerable on the IUCN Red List and is a focus of conservation concern. Vulnerable species face a high risk of extinction in the wild if pressures continue.
Its mapped global range covers an estimated 3,517 km² — a relatively restricted global range.
Songs & calls
Frequently asked questions
How big is the Sincora Antwren?
The Sincora Antwren is a very small bird that weighs around 10 g.
Where does the Sincora Antwren live?
The Sincora Antwren is found across South America with a range covering SA ne Brazil.
What family does the Sincora Antwren belong to?
The Sincora Antwren (Formicivora grantsaui) belongs to the Thamnophilidae family, in the order Passeriformes.
What does the Sincora Antwren eat?
The Sincora Antwren is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Does the Sincora Antwren migrate?
The Sincora Antwren is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
Is the Sincora Antwren endangered?
It is classified as Vulnerable on the IUCN Red List and is a focus of conservation concern Vulnerable species face a high risk of extinction in the wild if pressures continue.
What sound does the Sincora Antwren make?
1 real field recording of the Sincora Antwren — including its call — can be played in the Songs & calls section on this page, credited to the recordist who captured it.
How large is the Sincora Antwren's range?
The Sincora Antwren has a mapped global range of about 3,517 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.