Euploea sylvester
In 3 days ~20% in a week ~50%
Euploea sylvester, the double-branded crow, also known as the two-brand crow in Australia, is a butterfly found in South Asia, Southeast Asia and parts of Australia that belongs to the crows and tigers, that is, the danaid group of the brush-footed butterflies family.
Several races of the butterfly are recognized. Race pelor is found in Australia. Males, however, can be distinguished at once by the presence of two brands instead of a single one on the forewing. Of the females Lionel de Nicéville says, females of E. coreta... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kaeng Krachan National Park | 🇹🇭 Thailand |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Double-Branded Crow Butterfly sighting in Taichung on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 113th most-seen of the 197 insects 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.
June and August
In those months about 20% of wildlife watchers report a Double-Branded Crow Butterfly in Taichung on a given day, against under 5% in February, July and September–December, the lowest months. Those are among Taichung's wettest months, with about 320 mm of rain a month against 40 mm in December.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Double-Branded Crow Butterfly sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 8
Of the 8 cities where we can rate Double-Branded Crow Butterfly sightings, Taichung ranks 5th at about 10%. The best odds are in Salem (India, about 20%), Chennai (India, about 10%) and Bengaluru (India, about 10%).
Same genus: Euploea
The closest relatives of the Double-Branded Crow Butterfly that you can see in Taichung (genus Euploea, Crow Butterflies) are Purple Crow Butterfly (about 10%) and Striped Blue Crow (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Double-Branded Crow Butterfly is recorded against all the insects logged in Taichung (9 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.
