Photo: Miguel / CC BY-SA 4.0 (Wikimedia Commons)
Undulated Antshrike
Frederickena unduliger
Undulated Antshrike (Frederickena unduliger) — 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 Undulated Antshrike (Frederickena unduliger) is a member of the Thamnophilidae family found in South America. Adults weigh 83 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 Frederickena
- Species unduliger
Quick facts
- Weight
- 83 g
- Diet
- Invertebrate-eaters
- Family
- Thamnophilidae
- Order
- Passeriformes
- Habitat
- Woodland
How to identify
Similar birds
Not Evaluated
Least Concern
Least Concern
Least Concern
Biology & behaviour
Diet
The Undulated Antshrike is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Behaviour
A bird of dense forest, it uses a wide range of foraging strategies.
Migration
The Undulated Antshrike is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
The Undulated Antshrike (Frederickena unduliger) is a member of the Thamnophilidae family, within the order Passeriformes. It is found across South America. Its distribution covers SA w Amazonia.
It is a medium-sized bird. Adults weighs around 83 g, with a wing length of about 10.1 cm and a tail of around 9.1 cm.
The IUCN Red List currently assesses it as Least Concern. That category covers species that remain widespread and reasonably abundant in the wild.
Its mapped global range covers an estimated 1.7 million km².
Songs & calls
Frequently asked questions
How big is the Undulated Antshrike?
The Undulated Antshrike is a medium-sized bird that weighs around 83 g.
Where does the Undulated Antshrike live?
The Undulated Antshrike is found across South America with a range covering SA w Amazonia, where it favours woodland, forest and well-treed country.
What family does the Undulated Antshrike belong to?
The Undulated Antshrike (Frederickena unduliger) belongs to the Thamnophilidae family, in the order Passeriformes.
What does the Undulated Antshrike eat?
The Undulated Antshrike is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Does the Undulated Antshrike migrate?
The Undulated Antshrike is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
Is the Undulated Antshrike 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 Undulated Antshrike make?
1 real field recording of the Undulated Antshrike — 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 Undulated Antshrike's range?
The Undulated Antshrike has a mapped global range of about 1.7 million 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.