Osteopilus septentrionalis
Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~80% in a week >90%
The Cuban tree frog (Osteopilus septentrionalis) is a large species of tree frog that is native to Cuba, the Bahamas, and the Cayman Islands; but has become invasive in several other places around the Americas. Its wide diet and ability to thrive in urban areas has made it a highly invasive species with established colonies in places such as Florida, the Hawaiian island of Oahu, and the Caribbean Islands. These tree frogs can vary in size from 2 to 5.5 inches (5 to 12.7 cm) in length. Due to their large size, Cuban tree frogs can eat a wide variety of things, particularly native tree frogs, and their removal has shown to result in an increase in the amount of native tree frogs in an area. The tadpoles of Cuban tree frogs also heavily compete with native frog tadpoles, which can cause negative effects in body mass, size at metamorphosis, and growth rates for the native tadpoles.
Cuban tree frogs are the largest tree frogs in North America, ranging from 2 to 5.5 inches or (5 to 12.7 cm) in length. Cuban tree frogs are mostly gray, brown, or green, with young frogs having more green coloration than adults. These frogs have rough, warty skin with blotchy or mottled patterning... Wikipedia →
Advertisement call0:14
United States · 2018
© Chris Harrison · XC891003 · CC BY-NC-SA 4.0
Recording0:05
United States · 2026
© Connor Gordon · iNaturalist · CC BY-NC 4.0
Recording0:32
United States · 2025
© ocnchikergirl · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Cypress National Preserve | 🇺🇸 United States | |
| 2 | Ciénaga de Zapata | 🇨🇺 Cuba | |
| 3 | Everglades National Park | 🇺🇸 United States | |
| 4 | Merritt Island National Wildlife Refuge | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Orlando | 🇺🇸 United States | |
| 2 | Miami | 🇺🇸 United States | |
| 3 | Havana | 🇨🇺 Cuba | |
| 4 | Austin | 🇺🇸 United States | |
| 5 | New York City | 🇺🇸 United States |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Audubon Zoo | 🇺🇸 United States | |
| 2 | ZooTampa | 🇺🇸 United States | |
| 3 | Houston Zoo | 🇺🇸 United States | |
| 4 | Wild Bird Fund | 🇺🇸 United States |
Likely
About 40% of wildlife watchers report a Cuban Treefrog sighting in Ciénaga de Zapata on a given day, based on 22 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.
August
In that month about 70% of wildlife watchers report a Cuban Treefrog in Ciénaga de Zapata on a given day, against about 10% in June–July and November, the lowest months. That is one of Ciénaga de Zapata's wettest months, with about 130 mm of rain against 15 mm in February. May and September have too few records to rate.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Cuban Treefrog sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
2nd of 4
Of the 4 parks where we can rate Cuban Treefrog sightings, Ciénaga de Zapata ranks 2nd at about 40%. The best odds are in Big Cypress National Preserve (United States, about 50%). All parks ranked.
GBIF citizen-science records
It is estimated from how often the Cuban Treefrog is recorded against all the amphibians logged in Ciénaga de Zapata (22 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.
