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 LC    Western Thornbill* Id (Atlas): 472
    Acanthiza inornata Endemic

Description (10)
Image of Western Thornbill
  Sexes alike.

Adults: Above, plain olive-grey. Wings and tail, duskier grey. Tail feathers tipped narrowly buff except the central pair. Forehead, scalloped. Face, flecked with buff-white. Below, buff-cream, flecked faintly grey at sides of breast. Eye, greyish-white. Bill, dusky, paler below. Feet, dusky grey.

Immatures: As adults. Duller with obscure forehead markings.


Other Names (World)
Western Thornbill, Western Tit-warbler, Bark-tit, Plain-colored Tit, Plain-coloured Tit, Master's Tit

Family
Acanthizidae (Thornbills)

Size
23 - 10 cm

First Described (Guide)
Gould, 1841

Derivation
Ac-anth-iz'-a - Gk, acantheon, thorny brake; Gk, zao, I live: in-orn-Ļa;-ta - L., inornatus, unadorned

Abundance (Guide)
C

Common. Sedentary.

Habitat
Tall forests to open woodlands. Coastal scrubs.

Range (Guide)
Australia (B).

Image of Range of Western Thornbill
South-western Australia, extending north to Moora and east to the Stirling Ranges. A single record from east of Kalbarri, farther northern in central subcoastal zone.
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.

Population
Estimated population is unknown (2010).

Status LC
Probably secure.

For more information see BirdLife International Species Factsheet.

Food
Insects and also nectar.

Voice
Call: and Song: Rapid, ringing, staccato twittering in erratic bursts on the same pitch, similar to that of the Buff-rumped Thornbill (Acanthiza reguloides).



Xeno-Canto Sound Files (more (9)...)

 
Western Thornbill (Acanthiza inornata) [XC872198]
     by Mark Harper from Dryandra, Shire of Cuballing, Western Australia, Australia (call)

 
Western Thornbill (Acanthiza inornata) [XC382788]
     by Marc Anderson from Congelin Dam, Dryandra Woodland, Western Australia, Australia (call)

Breeding Season (Guide)
August - December.

J F M A M J J A S O N D
   
   
   
   
   
   
   
   
   
   
   
   


Nest
Dome, oval, composed of grasses and lined with feathers, usually placed against the trunk of a bushy tree, behind a piece of bark on a tree trunk, or in a hole in a tree.

Eggs (Guide)
Usually 4; pale flesh-white, with pale red to rich brown freckles and spots, often forming a zone at the larger end; oblong-oval; about 16 x 12 mm. Incubation: about 20 days.

Young
Altricial, nidicolous. Fledge in 17 - 18 days. Fed by both parents.

Subspecies
No subspecies.

Probably forms a superspecies with Buff-rumped Thornbill (Acanthiza reguloides).

Proposed subspecies mastersi (wettest portion of southern coast of south-western Australia, east to Albany) may be worthy of recognition, as sharp gradation occurs between darker population in extreme southern and paler one to the north; further study is required.

Similar Species
Slender-billed Thornbill (Acanthiza iredalei).

Compare Images


References
See References.

The Field Guide to the Birds of Australia Pizzey, G., and Knight, E., 1997, Angus & Robertson, Sydney ISBN 0 207 19691 5
Field Guide to Australian Birds Morecombe, M., 2000, Steve Parish Publishing Pty Ltd. ISBN 1 876282 10 X
Field Guide to the Birds of Australia Simpson, K., and Day, N., 1999, 6th Edition, Viking ISBN 0 670 87918 5
Reader's Digest Complete Book of Australian Birds 1988, 2nd Edition, Reader's Digest ISBN 0 949819 99 9
What Bird is That? 1984, Revised Edition, Angus & Robertson, Sydney ISBN 0 207 14846 5
Handbook of Australian, New Zealand & Antarctic Birds 1990 - , Oxford University Press, Melbourne ISBN 0 19 553244 9


Files:
JPG files for Western Thornbill (Acanthiza inornata) - 10 filesMP3 files for Western Thornbill (Acanthiza inornata) - 1 files


More Information

BirdLife International

For more information about the Western Thornbill see... Show Articles BirdLife International Species Factsheet.


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