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  1. Species
  2. ›
  3. Acanthizidae
  4. ›
  5. Smicrornis
  6. ›
  7. Weebill
Weebill
Photo · (c) Donald Davesne, some rights reserved (CC BY)

BirdUp · Species

Weebill

Smicrornis brevirostris(Gould, 1838)

Updated 11 June 2026

Conservation status: LCOrigin: Endemic
Order
PASSERIFORMES
Family
Acanthizidae
Genus
Smicrornis

At a glance

The Weebill is a tiny bird, about 8–10 cm long, listed as LC and endemic to Australia. It can be seen year-round.

Size
8–10 cm
Conservation status
LC
Origin
Endemic
Best seen
Year-round
Commonness
Endemic
  • Identification
  • Where
  • When
  • Voice
  • Behaviour
  • Gallery

01 · Identification

How to tell it apart

What does a Weebill look like?

The Weebill is a tiny bird, about 8–10 cm long and weighing 4–8 g, identified by its very short, stubby, pale bill; pale cream or light yellow iris; dark tail bar with white spots; and tiny, compact body shape.

Australia’s smallest bird, the Weebill is a tiny, energetic canopy-dweller measuring only 8 to 9 centimetres. It is best identified by its remarkably short, stubby, pale-grey bill, which gives it a distinct blunt-faced profile. Adults possess pale-yellow eyes and a faint cream eyebrow. Plumage varies geographically: southern and eastern birds are olive-grey above with buff-yellow underparts, while northern and inland populations are significantly brighter and more yellow throughout. The brownish tail features a conspicuous black subterminal band and white tips, often visible from below as the bird flits about. Juveniles are similar but have darker eyes and a yellower bill base. Its voice is surprisingly loud and far-carrying for its size, often revealing its presence long before it is spotted. The song is a jaunty, musical, high-pitched "wee-willy-weet-it" or a sharp, repetitive "wee-bit." Highly active and acrobatic, the Weebill spends its day busily gleaning insects and sugary lerps from the outer foliage of the canopy, frequently hovering at the tips of branches to reach prey. It is social, usually found in pairs or small groups, and regularly joins mixed-species feeding flocks with thornbills and pardalotes. Found across most of mainland Australia but absent from Tasmania, it inhabits a wide range of wooded environments, preferring dry eucalypt forests, woodlands, mallee, and acacia scrub. In arid regions, it is often restricted to trees lining watercourses. The Weebill is reliably distinguished from thornbills by its much shorter, thicker, paler bill and pale eyes; most thornbills have longer, finer, darker bills and dark or reddish eyes. It is smaller and more compact than Gerygones, which possess longer, slender bills and different, more fluid warbling songs.

Description · BirdUp · CC BY-SA 4.0

  1. 01

    Very short, stubby, pale bill

    Noticeably short and thick-based, giving the head a blunt profile.

  2. 02

    Pale cream or light yellow iris

    The pale eye is a strong diagnostic mark, contrasting with the dark eyes of many small passerines.

  3. 03

    Dark tail bar with white spots

    Visible on tips of outer tail feathers, especially when fanned or in flight.

  4. 04

    Tiny, compact body shape

    Its diminutive and rounded form is often a primary identification clue in the field.

Field specs

Length
8–10 cm
Weight
4.2–7.9 g
Wingspan
15 cm

Measurements · avonet · CC BY 4.0

Field tips

behaviour

  • Extremely active and restless in the high canopy, they frequently hover at the edges of outer foliage or cling acrobatically upside-down to thin twigs.

plumage

  • Adults feature a striking pale yellow iris and a faint cream-coloured eyebrow, while juveniles show greyer eyes and a brighter yellow bill.
  • The tail displays a broad, dark subterminal band with distinct white spots at the tips of the outer feathers, contrasting with the dark central feathers.

size_and_shape

  • The exceptionally short, stubby, and pale bill is a primary diagnostic feature, appearing notably blunt and short.

voice

  • Listen for a surprisingly loud and clear musical whistle, typically a three or four-note 'wee-willy-weet-tee', that carries remarkably well for such a tiny bird.

03 · When

When to look

When can you see a Weebill?

The Weebill 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

Jono · Lyneham ACT 2602, Australia

Call

Alex Darlington · Stevens St, Mundaring, WA, AU

Call

graeme lunt · Hepburn - West, AU-VI, AU

Call

graeme lunt · Hepburn - West, AU-VI, AU

05 · Behaviour

Habits and haunts

What does a Weebill eat?

The Weebill feeds on terrestrial invertebrates, usually foraging in pairs or flocks.

06 · Gallery

Plumage up close

6 photos

The BirdUp app

Log your next Weebill in the field

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02 · Where

Where to find it

Where does the Weebill live in Australia?

The Weebill is endemic to Australia, recorded across 83 of Australia’s bioregions.

BreedingAustralia (except Tasmania)

Distribution from BirdUp Australia community data

Legend

  • Resident

7 regions recorded