Agrotis vancouverensis
In 3 days ~10% in a week ~30%
Agrotis vancouverensis, the Vancouver dart, is a moth of the family Noctuidae. The species was first described by Augustus Radcliffe Grote in 1873. It is found in the Pacific Northwest of North America and is common west of the Cascade Mountains.
The length of the forewings is about 33 mm. Adults are on wing in late spring and early summer. There is one generation per year. The larvae feed on various herbs. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Bear Rainforest | 🇨🇦 Canada |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Vancouver Dart sighting in Portland on a given day, based on 36 verified sightings from GBIF citizen-science data. It is the 170th most-seen of the 507 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
June and July
In those months about 10% of wildlife watchers report a Vancouver Dart in Portland on a given day, against under 5% in August to May, the lowest months. Those are among Portland's driest months, with about 35 mm of rain a month against 250 mm in December.
Between 5 and 8 am
Across all the parks we cover, that three-hour window holds the most Vancouver Dart sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Yes
Of the 2 cities where we can rate Vancouver Dart sightings, Portland has the highest daily chance: under 5%. Next come Vancouver (Canada, under 5%).
GBIF citizen-science records
It is estimated from how often the Vancouver Dart is recorded against all the insects logged in Portland (36 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.
