Oecanthus nigricornis
In 3 days ~10% in a week ~20%
Oecanthus nigricornis is a "common tree cricket" in the subfamily Oecanthinae ("tree crickets"). A common name for O. nigricornis is black-horned tree cricket. It is found in North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Black-Horned Tree Cricket sighting in Toronto on a given day, based on 24 verified sightings from GBIF citizen-science data. It is the 597th 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.
September
In that month about 10% of wildlife watchers report a Black-Horned Tree Cricket in Toronto on a given day, against under 5% in October to August, the lowest months.
Among the best
Of the 3 cities where we can rate Black-Horned Tree Cricket sightings, Toronto ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Montreal (Canada, under 5%) and Boston (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Black-Horned Tree Cricket is recorded against all the insects logged in Toronto (24 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.
