Photo: Hector Bottai / CC BY-SA 4.0 (Wikimedia Commons)
Rufous Casiornis
Casiornis rufus
Rufous Casiornis (Casiornis rufus) — 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 Rufous Casiornis (Casiornis rufus) is a member of the Tyrannidae family found in South America. Adults weigh 24.8 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 Tyrannidae Tyrant Flycatchers, Calyptura
- Genus Casiornis
- Species rufus
Where it lives
Bolivia to central Brazil and south to northern Argentina and southeastern Brazil
Quick facts
- Weight
- 24.8 g
- Diet
- Invertebrate-eaters
- Family
- Tyrannidae
- Order
- Passeriformes
- Habitat
- Woodland
How to identify
Similar birds
Least Concern
Least Concern
Least Concern
Least Concern
Biology & behaviour
Diet
The Rufous Casiornis is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Behaviour
A bird of semi-open woodland, it spends much of its time perched in trees and shrubs.
Migration
The Rufous Casiornis is migratory, making regular seasonal journeys between its breeding and non-breeding ranges.
The Rufous Casiornis (Casiornis rufus) is a species of bird in the Tyrannidae family, part of the order Passeriformes. It occurs naturally across South America. Its distribution covers SA Bolivia to c Brazil and s to n Argentina and se Brazil.
It is a small bird. Adults weighs around 24.8 g, with a wing length of about 8.5 cm and a tail of around 8.2 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 2.8 million km².
Songs & calls
Frequently asked questions
How big is the Rufous Casiornis?
The Rufous Casiornis is a small bird that weighs around 24.8 g.
Where does the Rufous Casiornis live?
The Rufous Casiornis is found across South America with a range covering SA Bolivia to c Brazil and s to n Argentina and se Brazil, where it is typically found in wooded and forested habitats.
What family does the Rufous Casiornis belong to?
The Rufous Casiornis (Casiornis rufus) belongs to the Tyrannidae family, in the order Passeriformes.
What does the Rufous Casiornis eat?
The Rufous Casiornis is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Does the Rufous Casiornis migrate?
The Rufous Casiornis is migratory, making regular seasonal journeys between its breeding and non-breeding ranges.
Is the Rufous Casiornis 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 Casiornis make?
1 real field recording of the Rufous Casiornis — 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 Rufous Casiornis's range?
The Rufous Casiornis has a mapped global range of about 2.8 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 Tyrannidae
A field guide to the Tyrannidae family — 444 species in the Birbs encyclopedia, with the best-known members to start with.