Pseudacris maculata
Silhouette: Beth Reinke · PhyloPic
In 3 days ~80% in a week >90%
The boreal chorus frog (Pseudacris maculata) is a species of chorus frog native to Canada from central Quebec to eastern British Columbia and north to the Northwest Territories and the southern portion of the Yukon. It occurs in the USA throughout Montana, Minnesota, northwestern Wisconsin, northeastern Arizona, northern New Mexico, and southwestern Utah.
This small species of frog reaches about 30 mm in length. It is highly variable, but is normally brown, and can be green on the dorsal surface, with three broken dorsal stripes; these stripes can be very distinct to quite faint. A dark band is present from the snout, across the eye, and continuing down the side. It has slightly enlarged toe pads to help in climbing small grasses and vegetation. This species is very similar to the western chorus frog (Pseudacris triseriata). It can be distinguished from this species by having shorter legs.
This species can be found around permanent water bodies in cleared land and forest. Males make a "reeeek" call from grasses, vegetation, or ground around the water body from April through to September. This call is characteristic of the trilling frog clade... Wikipedia →
Recording1:30
United States · 2013
© Jonathon Jongsma · XC138641 · CC BY-SA 3.0
Recording0:11
Canada · 2015
© Julie · XC298506 · CC BY-NC-SA 4.0
Recording0:05
United States · 2026
© professorquercus · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wood Buffalo National Park | 🇨🇦 Canada | |
| 2 | Elk Island National Park | 🇨🇦 Canada | |
| 3 | Riding Mountain National Park | 🇨🇦 Canada | |
| 4 | Badlands National Park | 🇺🇸 United States | |
| 5 | Grand Teton National Park | 🇺🇸 United States | |
| 6 | Yellowstone National Park | 🇺🇸 United States | |
| 7 | Rocky Mountain National Park | 🇺🇸 United States |
Likely
About 40% of wildlife watchers report a Boreal Chorus Frog sighting in Wood Buffalo National Park on a given day, based on 36 verified sightings from GBIF citizen-science data from 2019 to 2026. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
June
In that month about 80% of wildlife watchers report a Boreal Chorus Frog in Wood Buffalo National Park on a given day, against under 5% in May and September, the lowest months. That is one of Wood Buffalo National Park's wettest months, with about 60 mm of rain against 15 mm in March. March and December have too few records to rate.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Boreal Chorus Frog sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 7 parks where we can rate Boreal Chorus Frog sightings, Wood Buffalo National Park has the highest daily chance: about 40%. Next come Elk Island National Park (Canada, about 40%) and Riding Mountain National Park (Canada, about 20%).
GBIF citizen-science records
It is estimated from how often the Boreal Chorus Frog is recorded against all the amphibians logged in Wood Buffalo National Park (36 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.
