Cyclophora pendulinaria
In 3 days ~30% in a week ~60%
Cyclophora pendulinaria, the sweetfern geometer moth or pearly-grey wave, is a moth in the family Geometridae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Acadia National Park | 🇺🇸 United States | |
| 2 | Gros Morne National Park | 🇨🇦 Canada | |
| 3 | Great Bear Rainforest | 🇨🇦 Canada |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Montreal | 🇨🇦 Canada | |
| 2 | New York City | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Sweetfern Geometer Moth sighting in Gros Morne National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 46th most-seen of the 83 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
June
In that month about 20% of wildlife watchers report a Sweetfern Geometer Moth in Gros Morne National Park on a given day, against under 5% in August to May, the lowest months.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Sweetfern Geometer Moth sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Among the best
Of the 3 parks where we can rate Sweetfern Geometer Moth sightings, Gros Morne National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Acadia National Park (United States, about 10%).
Same family: Geometridae
The closest relatives of the Sweetfern Geometer Moth that you can see in Gros Morne National Park (family Geometridae, Geometer Moths) are Hemlock Looper Moth (about 30%), Gray Spruce Looper Moth (about 20%) and Pale Beauty (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sweetfern Geometer Moth is recorded against all the insects logged in Gros Morne National Park (8 verified sightings from 2019 to 2026), 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.
