What are the chances of seeing a Falco atricapillus in Chicago?
Rare
Under 5% of wildlife watchers report a Falco atricapillus sighting in Chicago on a given day, based on 29 verified sightings from GBIF citizen-science data. It is the 294th most-seen of the 314 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
When is the best time to see a Falco atricapillus in Chicago?
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Falco atricapillus in Chicago on a given day, so our monthly data shows no clear season.
Is Chicago the best place to see a Falco atricapillus?
Among the best
Of the 7 cities where we can rate Falco atricapillus sightings, Chicago ranks 7th at under 5%, level with the leaders once rounded. The best odds are in Anchorage (United States, under 5%), Edmonton (Canada, under 5%) and Calgary (Canada, under 5%).
Where does the Falco atricapillus sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Falco atricapillus is recorded against all the birds logged in Chicago (29 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.