Photo: Hector Bottai / CC BY-SA 4.0 (Wikimedia Commons)
Straneck’s Tyrannulet
Serpophaga griseicapilla
Straneck's Tyrannulet (Serpophaga griseicapilla) — 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 Straneck’s Tyrannulet (Serpophaga griseicapilla) is a member of the Tyrannidae family found in South America. Adults weigh 6.6 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 Tyrannidae Tyrant Flycatchers, Calyptura
- Genus Serpophaga
- Species griseicapilla
Quick facts
- Weight
- 6.6 g
- Diet
- Invertebrate-eaters
- Family
- Tyrannidae
- Order
- Passeriformes
How to identify
Similar birds
Least Concern
Near Threatened
Least Concern
Least Concern
Biology & behaviour
Diet
The Straneck’s Tyrannulet 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 Straneck’s Tyrannulet is migratory, making regular seasonal journeys between its breeding and non-breeding ranges.
The Straneck’s Tyrannulet (Serpophaga griseicapilla) is a member of the Tyrannidae family, within the order Passeriformes. It is found across South America. Its distribution covers SA cw, nw Argentina.
It is a very small bird. Adults weighs around 6.6 g, with a wing length of about 4.9 cm and a tail of around 4.6 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 490,000 km².
Songs & calls
Frequently asked questions
How big is the Straneck’s Tyrannulet?
The Straneck’s Tyrannulet is a very small bird that weighs around 6.6 g.
Where does the Straneck’s Tyrannulet live?
The Straneck’s Tyrannulet is found across South America with a range covering SA cw, nw Argentina.
What family does the Straneck’s Tyrannulet belong to?
The Straneck’s Tyrannulet (Serpophaga griseicapilla) belongs to the Tyrannidae family, in the order Passeriformes.
What does the Straneck’s Tyrannulet eat?
The Straneck’s Tyrannulet is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Does the Straneck’s Tyrannulet migrate?
The Straneck’s Tyrannulet is migratory, making regular seasonal journeys between its breeding and non-breeding ranges.
Is the Straneck’s Tyrannulet 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 Straneck’s Tyrannulet make?
1 real field recording of the Straneck’s Tyrannulet — 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 Straneck’s Tyrannulet's range?
The Straneck’s Tyrannulet has a mapped global range of about 490,000 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 Tyrannidae
A field guide to the Tyrannidae family — 444 species in the Birbs encyclopedia, with the best-known members to start with.