Smicrornis brevirostris
Silhouette: Sheatherius · PhyloPic
In 3 days ~90% in a week >90%
The weebill (Smicrornis brevirostris) is a species of bird in the family Acanthizidae. It is an insectivorous passerine that is found throughout mainland Australia. At 8 to 9 cm (3.1 to 3.5 in) long, it is Australia's smallest bird. It was originally described by John Gould in 1838, and four subspecies are recognised. The weebill's plumage is nondescript, with olive-grey upperparts and paler, more yellowish underparts. It grades from more brownish plumage in the southern regions of Australia to more yellow in tropical areas.
The weebill was described by John Gould in 1838 as Psilopus brevirostris. The species epithet is derived from the Latin words brevis 'short' and rostrum 'beak'. In 1843, Gould erected the genus Smicrornis for his new species Smicrornis flavescens, collected from Port Essington, noting it as distinct from Gerygone (which had replaced Psilopus as a name). The generic name Smicrornis derives from the Greek smicros 'small' and ornis 'bird'. It is the only member of genus Smicrornis; gene flow is strong and local variation follows Bergmann's and Gloger's rules.
Gould initially called it the short-billed smicrornis, but it did not gain acceptance. Other... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Flinders Ranges National Park | 🇦🇺 Australia | |
| 2 | Hattah-Kulkyne National Park | 🇦🇺 Australia | |
| 3 | Nitmiluk National Park | 🇦🇺 Australia | |
| 4 | Grampians National Park | 🇦🇺 Australia | |
| 5 | Kakadu National Park | 🇦🇺 Australia | |
| 6 | Kosciuszko National Park | 🇦🇺 Australia | |
| 7 | Litchfield National Park | 🇦🇺 Australia | |
| 8 | Great Otway National Park | 🇦🇺 Australia | |
| 9 | Blue Mountains National Park | 🇦🇺 Australia |
Likely
About 60% of wildlife watchers report a Weebill sighting in Hattah-Kulkyne National Park on a given day, based on 967 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 9th most-seen of the 170 birds we can rate there. Over three days the chance rises to about 90%, and over a week to over 90%, if each day is a fresh chance.
August
In that month about 70% of wildlife watchers report a Weebill in Hattah-Kulkyne National Park on a given day, against about 50% in October and November, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Weebill sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 9 parks where we can rate Weebill sightings, Hattah-Kulkyne National Park ranks 2nd at about 60%, level with the leaders once rounded. The best odds are in Flinders Ranges National Park (Australia, about 60%). All parks ranked.
Same family: Acanthizidae
The closest relatives of the Weebill that you can see in Hattah-Kulkyne National Park (family Acanthizidae, Thornbills and Allies) are Chestnut-rumped Thornbill (about 50%), Inland Thornbill (about 20%) and Southern Whiteface (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Weebill is recorded against all the birds logged in Hattah-Kulkyne National Park (967 verified sightings from 2019 to 2026), 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.
