Acanthiza apicalis
Silhouette: Matt Wilkins (photo by Patrick Kavanagh) · PhyloPic
In 3 days ~10% in a week ~20%
The inland thornbill (Acanthiza apicalis) was originally described by English ornithologist John Gould in The Birds of Australia. Inland thornbills are within the order passerines. The inland thornbill belongs to the genus Acanthiza, which now has three more species than the eleven outlined by Gould in The Birds of Australia. The Noongar people of southwestern Western Australia call A. apicalis "Djoobi-Djoolbang". The inland thornbill is also known as the broad-tail thornbill and presently contains several subspecies that were once considered independent species. The word apicalis comes from the Latin for 'tipped'.
Early classification of the Acanthiza, or thornbill genus, was inconsistent with the currently accepted taxonomy. Historically, researchers recognised 10 -17 species in 1 – 3 genera. Separate traditional species of Thornbill have now been more accurately classified as subspecies than discrete species; however, the evolutionary relationships between inland thornbills and other Acanthizae are complicated. For example, the relationship between the inland thornbill and the brown thornbill (A. pusilla) and the mountain thornbill (A. katherina) is... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Flinders Ranges National Park | 🇦🇺 Australia | |
| 2 | Hattah-Kulkyne National Park | 🇦🇺 Australia | |
| 3 | Uluru-Kata Tjuta National Park | 🇦🇺 Australia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Perth | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report an Inland Thornbill sighting in Perth on a given day, based on 189 verified sightings from GBIF citizen-science data. It is the 93rd most-seen of the 162 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report an Inland Thornbill in Perth on a given day, so our monthly data shows no clear season.
Between 3 and 6 am
Across all the parks we cover, that three-hour window holds the most Inland Thornbill sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Only Perth, in our data
Perth is the only city on Wallace's Line with enough records to rate Inland Thornbill sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Inland Thornbill is recorded against all the birds logged in Perth (189 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
