Heteropogon macerinus
In 3 days ~10% in a week ~20%
Heteropogon macerinus is a species of robber fly in the family Asilidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Baltimore | 🇺🇸 United States | |
| 2 | Washington | 🇺🇸 United States | |
| 3 | Chicago | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an Eastern Twigsitter sighting in Chicago on a given day, based on 25 verified sightings from GBIF citizen-science data. It is the 421st most-seen of the 978 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report an Eastern Twigsitter in Chicago on a given day, so our monthly data shows no clear season.
Among the best
Of the 3 cities where we can rate Eastern Twigsitter sightings, Chicago ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Baltimore (United States, under 5%) and Washington (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Eastern Twigsitter is recorded against all the insects logged in Chicago (25 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.
