Inland thornbill

The inland thornbill (Acanthiza apicalis), called the broad-tailed thornbill, is a small, insect-eating bird of Australia. The inland thornbill is commonly confused with the coastal brown thornbill (Acanthiza pusilla) due to its similar colorations.[2] The inland thornbill encompasses four subspecies:[3]

  • Acanthiza apicalis albiventris
  • Acanthiza apicalis apicalis, the nominate subsp.
  • Acanthiza apicalis cinerascens
  • Acanthiza apicalis whitlocki, Whitlock's tit. Originally described as a species of Acanthiza by A. J. North, who was requested to honour the collector of its specimens, F. Lawson Whitlock, by the sponsor of the expedition, H. L. White.[4]

Inland thornbill

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Acanthizidae
Genus: Acanthiza
Species:
A. apicalis
Binomial name
Acanthiza apicalis
Gould, 1847
Subspecies

Acanthiza apicalis apicalis
Acanthiza apicalis albiventris
Acanthiza apicalis cinerascens
Acanthiza apicalis whitlocki

The inland thornbill ranges in size from 9 to 11 centimetres, averaging 10 centimetres and 7 grams.[5] The bird has a grey-brown back, a reddish rump, and a dark tail with a white tip. Its underbelly is cream colored with black streaks. Both male and female thornbills look similar, though male birds tend to be a bit larger.[5]

Breeding season lasts from July through December. Female thornbills average three eggs per clutch, which incubate for 19 days. Baby birds leave the nest after 17 days.[5]

The inland thornbill can be found throughout Australia inland of the Great Dividing Range, but not in tropical northern climates or in Tasmania.[2] The inland thornbill overlaps in range with the brown thornbill along the Great Dividing Range, leading to numerous mis-sightings.[5] Inland thornbills live in dry scrublands and woodlands. In Southwestern Australia, they also inhabit sand heaths and karri and jarrah forests.[5] It feeds on small insects and spiders, and occasionally seeds and small vegetable matter, beneath shrubs and in foliage.

References
  1. BirdLife International (2016). "Acanthiza apicalis". IUCN Red List of Threatened Species. 2016: e.T22731025A95031265. doi:10.2305/IUCN.UK.2016-3.RLTS.T22731025A95031265.en.CS1 maint: uses authors parameter (link)
  2. Oz Birds: Inland Thornbill. 2006. Accessible via
  3. Taxonomy Question
  4. Whitlock, F. L. (1910). "On the East Murchison. Four months collecting trip". The Emu. Melbourne : Royal Australasian Ornithologists Union. 9 (4): 198. Retrieved 16 July 2018.
  5. Birds in Backyards: Inland Thornbill Factsheet. Australian Museum. 2006. Accessible via:
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