Acanthiza reguloides
Buff-rumped Thornbills inhabit grassy woodlands and feed mostly in small flocks among the lower levels of the vegetation. However, they are quite common on the suburban fringes of Canberra Nature Park. Their call is a swift chinking call, sometimes compared with a bag full of ball bearings being shaken.
Numbers are stable from February until June, declining through July to a September minimum. During the survey numbers fluctuated irregularly, marginally highest in 1986-87 and very low in 1992-93.
There are rather few breeding records, with nest building from August, and dependent young seen from late November to late February. R=68. BR=48.