Heteronympha banksii
In 3 days ~40% in a week ~70%
Heteronympha banksii, or Banks's brown butterfly, is a medium-sized butterfly of the family Nymphalidae found in Australia. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Blue Mountains National Park | 🇦🇺 Australia | |
| 2 | Wilsons Promontory National Park | 🇦🇺 Australia | |
| 3 | Royal National Park | 🇦🇺 Australia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sydney | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report a Banks' Brown sighting in Blue Mountains National Park on a given day, based on 74 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 33rd most-seen of the 789 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
March
In that month about 40% of wildlife watchers report a Banks' Brown in Blue Mountains National Park on a given day, against under 5% in June to January, the lowest months. That is one of Blue Mountains National Park's wettest months, with about 150 mm of rain against 40 mm in May.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Banks' Brown sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 3 parks where we can rate Banks' Brown sightings, Blue Mountains National Park has the highest daily chance: about 10%. Next come Wilsons Promontory National Park (Australia, about 10%) and Royal National Park (Australia, about 10%).
Same genus: Heteronympha
The closest relatives of the Banks' Brown that you can see in Blue Mountains National Park (genus Heteronympha) are Common Brown (about 30%) and Spotted Brown (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Banks' Brown is recorded against all the insects logged in Blue Mountains National Park (74 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.
