Lithobates palustris
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~10%
The pickerel frog (Lithobates palustris, formerly Rana palustris) is a North American frog, characterized by the appearance of seemingly "hand-drawn" squares on its dorsal surface. The pickerel frog is a large gray or tan frog marked with seven to twenty-one irregular rectangular dark brown spots which are oriented in two columns down its back. The average number of square markings has been found to vary based on geographic regions. The distinctive rectangular spots of the pickerel frog may blend together to form a long rectangle along the back. All leopard frogs have circular spots. In addition, pickerel frogs have prominent dorsolateral ridges that are unbroken. Another important distinguishing mark is the orange or yellow flash pattern found on the inner surface of the hind legs of pickerel frogs. The frog must be picked up to examine this, as the legs cover the coloration otherwise. The plains leopard frog (Lithobates blairi) exhibits this coloration as well, but the dorsolateral ridges are interrupted and inset medially in that species. The front toes of pickerel frogs are not webbed, a morphological characteristic for some frogs of the genus Rana... Wikipedia →
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| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Acadia National Park | 🇺🇸 United States | |
| 2 | Shenandoah National Park | 🇺🇸 United States | |
| 3 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 4 | Cape Breton Highlands National Park | 🇨🇦 Canada |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States | |
| 2 | Philadelphia | 🇺🇸 United States | |
| 3 | Baltimore | 🇺🇸 United States | |
| 4 | Boston | 🇺🇸 United States | |
| 5 | New York City | 🇺🇸 United States |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Ecomuseum Zoo | 🇨🇦 Canada | |
| 2 | Trailside Museum & Zoo | 🇺🇸 United States | |
| 3 | Ralph Perkins II Wildlife Center and Woods Garden | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Pickerel Frog sighting in New York City on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 14th most-seen of the 14 amphibians we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Pickerel Frog in New York City on a given day, so our monthly data shows no clear season.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Pickerel Frog sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 5
Of the 5 cities where we can rate Pickerel Frog sightings, New York City ranks 5th at under 5%. The best odds are in Washington (United States, about 10%), Philadelphia (United States, about 10%) and Baltimore (United States, under 5%).
Same genus: Lithobates
The closest relatives of the Pickerel Frog that you can see in New York City (genus Lithobates, American Water Frogs) are American Bullfrog (about 20%) and Green Frog (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Pickerel Frog is recorded against all the amphibians logged in New York City (9 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.
