Millerbird
Acrocephalus familiaris
Millerbird (Acrocephalus familiaris) — Songbirds & Perching Birds of Oceans & Seabirds.
Found across 2 guides in our atlas — open any for the full checklist, photos and what's around right now.
The Millerbird (Acrocephalus familiaris) is a member of the Acrocephalidae family found in Oceans & Seabirds. Adults weigh 18.3 g. The IUCN Red List lists it as Endangered.
Conservation status
IUCN Red List (opens in a new tab)Facing a very high risk of extinction in the wild.
Where it fits
- Class Aves
- Order Passeriformes
- Family Acrocephalidae Reed Warblers & Allies
- Genus Acrocephalus
- Species familiaris
Quick facts
- Weight
- 18.3 g
- Diet
- Invertebrate-eaters
- Family
- Acrocephalidae
- Order
- Passeriformes
- Habitat
- Woodland
How to identify
Similar birds
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Biology & behaviour
Diet
The Millerbird is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Behaviour
A bird of open scrub and shrubland, it spends much of its time perched in trees and shrubs.
Migration
The Millerbird is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
The Millerbird (Acrocephalus familiaris) belongs to the Acrocephalidae family of the order Passeriformes. It is found across Oceans & Seabirds. Its distribution covers PO Hawaiian Is.
It is a small bird. Adults weighs around 18.3 g, with a wing length of about 6.1 cm and a tail of around 5.7 cm.
It is classified as Endangered on the IUCN Red List and is a focus of conservation concern. Endangered species face a very high risk of extinction in the wild.
The species has a mapped global range of roughly 2 km² — a relatively restricted global range.
Songs & calls
Frequently asked questions
How big is the Millerbird?
The Millerbird is a small bird that weighs around 18.3 g.
Where does the Millerbird live?
The Millerbird is found across Oceans & Seabirds with a range covering PO Hawaiian Is, where it favours woodland, forest and well-treed country.
What family does the Millerbird belong to?
The Millerbird (Acrocephalus familiaris) belongs to the Acrocephalidae family, in the order Passeriformes.
What does the Millerbird eat?
The Millerbird is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Does the Millerbird migrate?
The Millerbird is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.
Is the Millerbird endangered?
It is classified as Endangered on the IUCN Red List and is a focus of conservation concern Endangered species face a very high risk of extinction in the wild.
What sound does the Millerbird make?
1 real field recording of the Millerbird — 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 Millerbird's range?
The Millerbird has a mapped global range of about 2 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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