Photo: Jan Axel Cubilla Rodríguez / CC BY 4.0 (Wikimedia Commons)
Cocos Tyrannulet
Nesotriccus ridgwayi
Cocos Tyrannulet (Nesotriccus ridgwayi) — Songbirds & Perching Birds of Central America & Caribbean.
Found across 2 guides in our atlas — open any for the full checklist, photos and what's around right now.
The Cocos Tyrannulet (Nesotriccus ridgwayi) is a member of the Tyrannidae family found in Central America & Caribbean. Adults weigh 11 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 Tyrannidae Tyrant Flycatchers, Calyptura
- Genus Nesotriccus
- Species ridgwayi
Quick facts
- Weight
- 11 g
- Diet
- Invertebrate-eaters
- Family
- Tyrannidae
- Order
- Passeriformes
- Habitat
- Woodland
How to identify
Similar birds
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Biology & behaviour
Diet
The Cocos 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 Cocos Tyrannulet is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
The Cocos Tyrannulet (Nesotriccus ridgwayi) is a species of bird in the Tyrannidae family, part of the order Passeriformes. It is found across Central America & Caribbean. Its distribution covers MA I. del Coco (far sw of Costa Rica).
It is a very small bird. Adults weighs around 11 g, with a wing length of about 6.1 cm and a tail of around 5.4 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 25 km² — a relatively restricted global range.
Frequently asked questions
How big is the Cocos Tyrannulet?
The Cocos Tyrannulet is a very small bird that weighs around 11 g.
Where does the Cocos Tyrannulet live?
The Cocos Tyrannulet is found across Central America & Caribbean with a range covering MA I. del Coco (far sw of Costa Rica), where it favours woodland, forest and well-treed country.
What family does the Cocos Tyrannulet belong to?
The Cocos Tyrannulet (Nesotriccus ridgwayi) belongs to the Tyrannidae family, in the order Passeriformes.
What does the Cocos Tyrannulet eat?
The Cocos Tyrannulet is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Does the Cocos Tyrannulet migrate?
The Cocos Tyrannulet is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
Is the Cocos Tyrannulet 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.
How large is the Cocos Tyrannulet's range?
The Cocos Tyrannulet has a mapped global range of about 25 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
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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.