Smicrornis brevirostris
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~50%
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 |
With luck
About 10% of wildlife watchers report a Weebill sighting in Kosciuszko National Park on a given day, based on 49 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 66th most-seen of the 127 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
March to May
In those months about 20% of wildlife watchers report a Weebill in Kosciuszko National Park on a given day, against under 5% in February, July–September and November, the lowest months. June has too few records to rate.
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.
6th of 9
Of the 9 parks where we can rate Weebill sightings, Kosciuszko National Park ranks 6th at about 10%. The best odds are in Flinders Ranges National Park (Australia, about 60%), Hattah-Kulkyne National Park (Australia, about 60%) and Nitmiluk National Park (Australia, about 30%). All parks ranked.
Same family: Acanthizidae
The closest relatives of the Weebill that you can see in Kosciuszko National Park (family Acanthizidae, Thornbills and Allies) are Brown Thornbill (about 50%), White-browed Scrubwren (about 50%) and Striated Thornbill (about 30%), 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 Kosciuszko National Park (49 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.
