Dryophytes versicolor
Silhouette: Will Booker · PhyloPic
In 3 days ~60% in a week ~90%
The gray treefrog (Dryophytes versicolor) is a species of small arboreal frog in the family Hylidae. The species is native to much of the eastern United States and southeastern Canada. It is sometimes referred to as the eastern gray treefrog, northern gray treefrog, common gray treefrog, or tetraploid gray treefrog to distinguish it from its more southern, genetically distinct relative, Cope's gray treefrog.
As the specific name versicolor implies, the gray treefrog is variable in color. This ability to vary its color provides it with the ability to camouflage itself from gray to green or brown, depending on the environment around it. Dryophytes versicolor can change from nearly black to nearly white. It changes color at a slower rate than a chameleon. A unique aspect of the appearance of the gray treefrog is that its legs feature a dark band-like pattern which then contrast sharply with the black-marked bright yellow or orange under the sides of its legs and arms. Dead gray treefrogs and ones in unnatural surroundings are predominantly gray. The female does not call; however, the male does call. The female gray treefrog is usually larger than its male counterpart... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Voyageurs National Park | 🇺🇸 United States | |
| 2 | Acadia National Park | 🇺🇸 United States | |
| 3 | Shenandoah National Park | 🇺🇸 United States | |
| 4 | Riding Mountain National Park | 🇨🇦 Canada |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Detroit | 🇺🇸 United States | |
| 2 | Philadelphia | 🇺🇸 United States | |
| 3 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 4 | Boston | 🇺🇸 United States | |
| 5 | Toronto | 🇨🇦 Canada | |
| 6 | Montreal | 🇨🇦 Canada | |
| 7 | Houston | 🇺🇸 United States | |
| 8 | Washington | 🇺🇸 United States | |
| 9 | New York City | 🇺🇸 United States |
Possible
About 20% of wildlife watchers report a Gray Treefrog Species Complex sighting in Voyageurs National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 5th most-seen of the 5 amphibians we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
July
In that month about 40% of wildlife watchers report a Gray Treefrog Species Complex in Voyageurs National Park on a given day, against under 5% in May and September, the lowest months. That is one of Voyageurs National Park's wettest months, with about 90 mm of rain against 25 mm in January. November to April have too few records to rate.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Gray Treefrog Species Complex sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 4 parks where we can rate Gray Treefrog Species Complex sightings, Voyageurs National Park has the highest daily chance: about 20%. Next come Acadia National Park (United States, about 20%) and Shenandoah National Park (United States, about 10%).
Same order: Anura
The closest relatives of the Gray Treefrog Species Complex that you can see in Voyageurs National Park (order Anura, Frogs and Toads) are American Toad (about 50%), Green Frog (about 40%) and Northern Leopard Frog (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Gray Treefrog Species Complex is recorded against all the amphibians logged in Voyageurs National Park (5 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.
