Gray Copper

Gray Copper

Tharsalea dione

Daily sighting probability <5% · Rare
at Denver

In 3 days ~10% in a week ~20%

13 Verified sightings at Denver
July Best month

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Denver 🇺🇸 United States
<5%
2 Minneapolis [Saint Paul] 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Gray Copper in Denver?

Rare

Under 5% of wildlife watchers report a Gray Copper sighting in Denver on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 256th most-seen of the 461 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.

When is the best time to see a Gray Copper in Denver?

June and July

In those months about 10% of wildlife watchers report a Gray Copper in Denver on a given day, against under 5% in August to May, the lowest months. Those are among Denver's wettest months, with about 50 mm of rain a month against 15 mm in January.

Is Denver the best place to see a Gray Copper?

Yes

Of the 2 cities where we can rate Gray Copper sightings, Denver has the highest daily chance: under 5%. Next come Minneapolis [Saint Paul] (United States, under 5%).

Which relatives of the Gray Copper live in Denver?

Same family: Lycaenidae

The closest relatives of the Gray Copper that you can see in Denver (family Lycaenidae, Gossamer-winged Butterflies) are Reakirt's Blue (about 10%), Gray Hairstreak (about 10%) and Western Pygmy-Blue (about 10%), with each one's daily chance of a sighting.

Where does the Gray Copper sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Gray Copper is recorded against all the insects logged in Denver (13 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.

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