Discophora sondaica
In 3 days ~20% in a week ~40%
Discophora sondaica, the common duffer, is a species of nymphalid butterfly found in Southeast Asia. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Common Duffer sighting in Taichung on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 172nd 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 40%, if each day is a fresh chance.
May–June and August–September
In those months about 10% of wildlife watchers report a Common Duffer in Taichung on a given day, against under 5% in July and October–April, the lowest months. Those are among Taichung's wettest months, with about 270 mm of rain a month against 40 mm in December.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Common Duffer 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 6 cities where we can rate Common Duffer sightings, Taichung ranks 4th at about 10%, level with the leaders once rounded. The best odds are in Taipei (Taiwan, about 10%), Tuen Mun (China, about 10%) and Hong Kong (China, about 10%).
Same family: Nymphalidae
The closest relatives of the Common Duffer that you can see in Taichung (family Nymphalidae, Brush-footed Butterflies) are Great Eggfly (about 20%), Plain Tiger Butterfly (about 20%) and Common Palmfly (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Duffer is recorded against all the insects logged in Taichung (5 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.
