Anthanassa atronia
In 3 days ~30% in a week ~50%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chirripó National Park | 🇨🇷 Costa Rica |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Brown Crescent sighting in Chirripó National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 92nd most-seen of the 127 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.
November
In that month about 30% of wildlife watchers report a Brown Crescent in Chirripó National Park on a given day, against under 5% in May–October and December–February, the lowest months. That is one of Chirripó National Park's wettest months, with about 450 mm of rain against 75 mm in February.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Brown Crescent sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Chirripó National Park, in our data
Chirripó National Park is the only park on Wallace's Line with enough records to rate Brown Crescent sightings: about 10% of wildlife watchers there report one on a given day.
Same genus: Anthanassa
The closest relatives of the Brown Crescent that you can see in Chirripó National Park (genus Anthanassa) are Orange-Banded Crescent (about 20%) and Blackened Crescent (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Brown Crescent is recorded against all the insects logged in Chirripó 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.
