Orthetrum melania
In 3 days ~40% in a week ~70%
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Greater Blue Skimmer sighting in Sendai on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 29th most-seen of the 128 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.
July
In that month about 40% of wildlife watchers report a Greater Blue Skimmer in Sendai on a given day, against under 5% in October to June, the lowest months. That is one of Sendai's wettest months, with about 200 mm of rain against 80 mm in February.
6th of 11
Of the 11 cities where we can rate Greater Blue Skimmer sightings, Sendai ranks 6th at about 20%. The best odds are in Naha (Japan, about 30%), Nagoya (Japan, about 20%) and Osaka (Japan, about 20%).
GBIF citizen-science records
It is estimated from how often the Greater Blue Skimmer is recorded against all the insects logged in Sendai (16 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.
