Nephrotoma ferruginea
In 3 days ~30% in a week ~50%
Nephrotoma ferruginea is a species of large crane fly in the family Tipulidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Gros Morne National Park | 🇨🇦 Canada | |
| 2 | Shenandoah National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 2 | Boston | 🇺🇸 United States | |
| 3 | Montreal | 🇨🇦 Canada | |
| 4 | Philadelphia | 🇺🇸 United States | |
| 5 | Detroit | 🇺🇸 United States | |
| 6 | Chicago | 🇺🇸 United States | |
| 7 | Baltimore | 🇺🇸 United States | |
| 8 | New York City | 🇺🇸 United States | |
| 9 | Toronto | 🇨🇦 Canada | |
| 10 | Washington | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Ferruginous Tiger Crane Fly sighting in Boston on a given day, based on 175 verified sightings from GBIF citizen-science data. It is the 88th most-seen of the 1200 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
May and June
In those months about 20% of wildlife watchers report a Ferruginous Tiger Crane Fly in Boston on a given day, against under 5% in July and December–April, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Ferruginous Tiger Crane Fly sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 17 cities where we can rate Ferruginous Tiger Crane Fly sightings, Boston ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Minneapolis [Saint Paul] (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Ferruginous Tiger Crane Fly is recorded against all the insects logged in Boston (175 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.
