Caltoris bromus
In 3 days ~20% in a week ~50%
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Extra-spot Swift sighting in Tuen Mun on a given day, based on 26 verified sightings from GBIF citizen-science data. It is the 188th most-seen of the 557 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.
May and June
In those months about 20% of wildlife watchers report an Extra-spot Swift in Tuen Mun on a given day, against under 5% in January, March–April and September–October, the lowest months. Those are among Tuen Mun's wettest months, with about 260 mm of rain a month against 20 mm in December.
Yes
Of the 3 cities where we can rate Extra-spot Swift sightings, Tuen Mun has the highest daily chance: about 10%. Next come Taipei (Taiwan, under 5%) and Singapore (Singapore, under 5%).
GBIF citizen-science records
It is estimated from how often the Extra-spot Swift is recorded against all the insects logged in Tuen Mun (26 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.
