Smicrornis brevirostris
Silhouette: Sheatherius · PhyloPic
In 3 days ~60% 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 |
Possible
About 30% of wildlife watchers report a Weebill sighting in Nitmiluk National Park on a given day, based on 111 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 31st most-seen of the 103 birds we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
January and March
In those months about 40% of wildlife watchers report a Weebill in Nitmiluk National Park on a given day, against about 20% in May, July, September and November, the lowest months. Those are among Nitmiluk National Park's wettest months, with about 200 mm of rain a month against almost none in August.
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.
3rd of 9
Of the 9 parks where we can rate Weebill sightings, Nitmiluk National Park ranks 3rd at about 30%. The best odds are in Flinders Ranges National Park (Australia, about 60%) and Hattah-Kulkyne National Park (Australia, about 60%). All parks ranked.
GBIF citizen-science records
It is estimated from how often the Weebill is recorded against all the birds logged in Nitmiluk National Park (111 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.
