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17

Buff-rumped Thornbill

(Acanthiza reguloides)
Alternate name(s): "Buff-rumped Tit", "Buff-rumped Tit-Warbler", "Bark-tit", "Buff-tailed Thornbill", "Varied Thornbill", "Scaly-breasted Tit"
Size: 10.5-11.5 cm
Weight: 9 g (average)

Similar species

Description     Classification     Distribution     Sightings     Photos     Breeding     Nest     Eggs     Behaviour     Food     Call/s

Physical description

Click here for a physical description

Taxonomy, classification

See Buff-rumped Thornbill at Wikipedia .

Range, habitat, finding this species

Click here for information on habitat and range

Sightings

Click here for sighting information

Photos

Race "reguloides"

ADULT

Close-up frontal view of a Buff-rumped Thornbill; the species can be identified by the light colour of the iris and the scalloped forehead; note also the pronounced forward vision
[Mt. Kaputar NP, NSW, September 2012]

Frontal view of a Buff-rumped Thornbill
[Deriah Aboriginal Area, NSW, December 2013]

Near-frontal view of a Buff-rumped Thornbill studying the photographer
[Deriah Aboriginal Area, NSW, October 2015]

Near-frontal view of a Buff-rumped Thornbill ; note the light colour of the iris and the scalloped forehead
[Mt. Kaputar NP, NSW, January 2008]

In this almost frontal view with the head turned, most characteristic features are hidden and identification is difficult (except for the grey irises)
[Mt. Kaputar NP, NSW, September 2012]

Near-lateral view of a Buff-rumped Thornbill
[Deriah Aboriginal Area, NSW, December 2013]

Lateral view of a Buff-rumped Thornbill
[20 km South of Narrabri, NSW, May 2012]

Lateral view of a Buff-rumped Thornbill, slightly different posture
[Mt. Kaputar NP, NSW, September 2012]

Lateral view of a Buff-rumped Thornbill, different posture
[Deriah Aboriginal Area, NSW, December 2013]

Near-dorsal view of a Buff-rumped Thornbill, with the typical colour of the rump clearly visible, but also the scalloped texture of the forehead is quite pronounced
[Mt. Kaputar NP, NSW, January 2008]

Dorsal view of a Buff-rumped Thornbill on the ground
[Deriah Aboriginal Area, NSW, May 2017]

Distant dorsal view of a Buff-rumped Thornbill, with the typical colour of the rump clearly visible; this is one of the birds whose calls were recorded on 10 October 2015
[Deriah Aboriginal Area, NSW, October 2015]

Breeding information

Breeding season: Aug - Dec Eggs: 3 - 5 Incubation period: 17 - 20 days Fledging age: ca. 16? days

Nest

"bungobittah", "malunna" = nest [Aboriginal]

Type: Dome in hollow Material: Bark strips, grass stems, leaves, feather lining Height above ground: 1 - 5 m

Lateral view of a branch with a Buff-rumped Thornbill nest inside
[Mt. Kaputar NP, NSW, September 2012]

View into the nesting hollow of a pair of Buff-rumped Thornbills
[Mt. Kaputar NP, NSW, September 2012]

Buff-rumped Thornbill carrying a Crimson Rosella feather for lining its nest
[Mt. Kaputar NP, NSW, September 2012]

Eggs

"boyanga", "booyanga", "derinya", "dirandil", "koomura", "ngampu", "nooluk", "pateena" = Egg; "dirundirri" = eggs [Aboriginal]; "gawu" = eggs [gamilaraay]

Size: 16 x 12 mm Colour: Creamy, with mid-brown speckles Shape: Tapered oval

Behaviour

Social behaviour: Territorial?/ roaming? Mobility: Sedentary Elementary unit: Family clan

(Next to Yellow-rumped Thornbills,) Buff-rumped Thornbills are one of only two species of thornbill observed by us to regularly forage on the ground. We have seen them hunting for insects on our lawn and paddock. Having caught something, they fly to a nearby tree with dense foliage before eating the insect.

Birds in general, not only Buff-rumped Thornbills, will try to be hidden from view while studying a human observer. The photo taken below does not just show a chance configuration, but this type of behaviour is observed by us regularly. Small, shy bird species, such as e.g. Chestnut-rumped Heathwrens, are particularly good at this.

Buff-rumped Thornbill using leaves of a shrub to hide behind
[Deriah Aboriginal Area, NSW, March 2014]

Food, Diet

To the best of our knowledge all Thornbills feed on little insects.

Buff-rumped Thornbill drinking water from a waterhole
[Deriah Aboriginal Area, NSW, January 2014]

Call(s)/Song

For this species we have recorded the following call(s)/song. The interpretation of their meaning is our own; comments and suggestions for improvement are welcome.

buthbil_20151010.mp3 reguloides
(NW NSW)
Contact calls? © MD
buthbil_20140402_3.mp3 reguloides
(NW NSW)
Warning call (human) © MD
buthbil_20140115_2.mp3 reguloides
(NW NSW)
Warning call © MD
buthbil_20140115_6.mp3 reguloides
(NW NSW)
Alarm call (Pied Currawong) © MD
buthbil_20140115.mp3 reguloides
(NW NSW)
Alarm call © MD
buthbil_20140115_4.mp3 reguloides
(NW NSW)
Alarm call © MD
buthbil_20140402.mp3 reguloides
(NW NSW)
? (foraging) © MD
buthbil_20140115_3.mp3 reguloides
(NW NSW)
? © MD
buthbil_20140115_5.mp3 reguloides
(NW NSW)
? © MD
buthbil_20140402.mp3 reguloides
(NW NSW)
? © MD

These pages are largely based on our own observations and those of our contributors. The structure of these bird pages is explained HERE. For more salient facts on any bird species please refer to a field guide.

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If interested, please CLICK HERE. Credits to contributors are given HERE.