Family Thornbills (Acanthizidae)

Least Concern

Chestnut-rumped Thornbill (Acanthiza uropygialis)


French: Acanthize à croupion roux German: Braunbürzel-Dornschnabel Spanish: Acantiza culirroja

Acanthiza uropygialis


, 1838,

inland New South Wales, Australia


Sister to the pairing of A. reguloides and A. inornata, based on recent DNA study#R. Variation clinal, plumage becoming darker from N & W to S & E, and palest inland. Proposed races moora (SW Australia) and augusta (arid interior of S, E to Flinders Ranges, in South Australia) unwarranted. Monotypic.


Semi-arid and arid zones of C & S Australia; absent from tropical N and from E seaboard.

Descriptive notes

9–11 cm; 6 g. Medium-sized, rather pale thornbill with pale eyes. Plumage is pale grey-brown to brownish-grey above, with distinct white scalloping on dark brown... read more


Song a sweet, trilling, rapid “swee-tee” series, shorter and less high-pitched than... read more


Dry woodland and shrubland, especially mallee with spinifex (Triodia), Eremophila... read more

Food and feeding

Reported food items mainly arthropods, including spiders (Araneae), beetles (Coleoptera), bugs (Hemiptera) including lerp insects (... read more


Season Jun–Dec, with eggs Jul–Dec; can be double-brooded or possibly triple-brooded. Most records of breeding involve pairs,... read more


Resident; some local movements of up to c. 2·5 km reported, but not well known. Odd records... read more

Status and conservation

Not globally threatened. Widespread species of much of arid and semi-arid mainland Australia; absent from the most severe deserts. Habitat clearance has caused declines in... read more

Recommended citation

Gregory, P. (2019). Chestnut-rumped Thornbill (Acanthiza uropygialis). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 23 April 2019).