Photo: https://www.flickr.com/photos/jquental / CC BY 2.0 (Wikimedia Commons)
Bolivian Tyrannulet
Zimmerius bolivianus
Bolivian Tyrannulet (Zimmerius bolivianus) — 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 Bolivian Tyrannulet (Zimmerius bolivianus) is a member of the Tyrannidae family found in South America. Adults weigh 11 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 Zimmerius
- Species bolivianus
Quick facts
- Weight
- 11 g
- Diet
- Invertebrate-eaters
- Family
- Tyrannidae
- Order
- Passeriformes
- Habitat
- Woodland
How to identify
Similar birds
Least Concern
Least Concern
Least Concern
Biology & behaviour
Diet
The Bolivian Tyrannulet 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 Bolivian Tyrannulet is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
The Bolivian Tyrannulet (Zimmerius bolivianus) is a member of the Tyrannidae family, within the order Passeriformes. It is found across South America. Its distribution covers SA se Peru and c, w Bolivia.
It is a very small bird. Adults weighs around 11 g, with a wing length of about 5.8 cm and a tail of around 5.1 cm.
The IUCN Red List currently assesses it as Least Concern. That category covers species that remain widespread and reasonably abundant in the wild.
The species has a mapped global range of roughly 112,000 km².
Frequently asked questions
How big is the Bolivian Tyrannulet?
The Bolivian Tyrannulet is a very small bird that weighs around 11 g.
Where does the Bolivian Tyrannulet live?
The Bolivian Tyrannulet is found across South America with a range covering SA se Peru and c, w Bolivia, where it is typically found in wooded and forested habitats.
What family does the Bolivian Tyrannulet belong to?
The Bolivian Tyrannulet (Zimmerius bolivianus) belongs to the Tyrannidae family, in the order Passeriformes.
What does the Bolivian Tyrannulet eat?
The Bolivian Tyrannulet is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Does the Bolivian Tyrannulet migrate?
The Bolivian Tyrannulet is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
Is the Bolivian 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.
How large is the Bolivian Tyrannulet's range?
The Bolivian Tyrannulet has a mapped global range of about 112,000 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.