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  1. Species
  2. ›
  3. Acanthizidae
  4. ›
  5. Acanthiza
  6. ›
  7. Brown Thornbill
Brown Thornbill
Photo · no rights reserved

BirdUp · Species

Brown Thornbill

Acanthiza pusilla(Shaw, 1790)

Updated 11 June 2026

Conservation status: Least ConcernOrigin: Endemic
Order
PASSERIFORMES
Family
Acanthizidae
Genus
Acanthiza

At a glance

The Brown Thornbill is a tiny bird, about 9–12 cm long, listed as Least Concern and endemic to Australia. It can be seen year-round.

Size
9–12 cm
Conservation status
Least Concern
Origin
Endemic
Best seen
Year-round
Commonness
Endemic
  • Identification
  • Where
  • When
  • Voice
  • Behaviour
  • Gallery

01 · Identification

How to tell it apart

What does a Brown Thornbill look like?

The Brown Thornbill is a tiny bird, about 9–12 cm long and weighing 4–15 g.

The brown thornbill is a passerine bird usually found in eastern and south-eastern Australia, including Tasmania. It can grow up to 10 cm (3.9 in) long, and feeds on insects. It is brown, grey and white. The species has five subspecies.

Description · wikipedia · CC BY-SA 4.0

Field specs

Length
9–12 cm
Weight
4.3–15 g

Measurements · avonet · CC BY 4.0

03 · When

When to look

When can you see a Brown Thornbill?

The Brown Thornbill is present across its Australian range year-round, so it can be seen in any month.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

04 · Voice

What it sounds like

Call

Thomas Jaeger · Melbourne VIC, Australia

Call

Melvin Xu · Inverloch, VIC, AU

Call

Ely Wallis · Murramarang National Park, Pretty Beach, NSW, AU

Call

John Cull · Heathmont VIC 3135, Australia

05 · Behaviour

Habits and haunts

What does a Brown Thornbill eat?

The Brown Thornbill feeds on seeds and terrestrial invertebrates, usually foraging in pairs or flocks or alone.

06 · Gallery

Plumage up close

6 photos

The BirdUp app

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02 · Where

Where to find it

Where does the Brown Thornbill live in Australia?

The Brown Thornbill is endemic to Australia, recorded across 45 of Australia’s bioregions, with a core range spanning east and south-east Australia.

BreedingEast and south-east Australia

Distribution from BirdUp Australia community data

Legend

  • Resident
  • Passage
  • Non-breeding

8 regions recorded