Aeshna constricta
In 3 days ~10% in a week ~20%
Aeshna constricta, the lance-tipped darner, is a species of darner in the dragonfly family Aeshnidae. It is found in North America. The IUCN conservation status of Aeshna constricta is "LC", least concern, with no immediate threat to the species' survival. The population is stable. The IUCN status was reviewed in 2017. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Montreal | 🇨🇦 Canada | |
| 2 | Toronto | 🇨🇦 Canada | |
| 3 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 4 | Portland | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Lance-Tipped Darner sighting in Toronto on a given day, based on 64 verified sightings from GBIF citizen-science data. It is the 314th most-seen of the 1689 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
August and September
In those months about 10% of wildlife watchers report a Lance-Tipped Darner in Toronto on a given day, against under 5% in October to July, the lowest months.
2nd of 4
Of the 4 cities where we can rate Lance-Tipped Darner sightings, Toronto ranks 2nd at under 5%. The best odds are in Montreal (Canada, about 10%).
GBIF citizen-science records
It is estimated from how often the Lance-Tipped Darner is recorded against all the insects logged in Toronto (64 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.
