Bertsa lankana
In 3 days ~10% in a week ~30%
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tuen Mun | 🇨🇳 China |
Rare
Under 5% of wildlife watchers report a Bertsa lankana sighting in Tuen Mun on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 492nd most-seen of the 557 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
April and May
In those months about 10% of wildlife watchers report a Bertsa lankana in Tuen Mun on a given day, against under 5% in June to March, the lowest months.
Only Tuen Mun, in our data
Tuen Mun is the only city on Wallace's Line with enough records to rate Bertsa lankana sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Bertsa lankana is recorded against all the insects logged in Tuen Mun (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.
