Tree Frogs in Indiana: Spotting Guide & Information

Where are the best places to spot tree frogs in Indiana?

Tree frogs in Indiana are most likely found in deciduous forests, near permanent water sources like ponds, marshes, and slow-moving streams. Backyards with trees, shrubs, and a small water feature can also attract them. For reliable sightings, try state parks such as Brown County State Park or Shades State Park, focusing on areas with plenty of leaf litter and downed logs.

What time of year and weather conditions are best for seeing tree frogs?

The best season runs from April through August, with peak activity after heavy rains when humidity is high. Warm evenings (above 50°F) prompt males to call. Spring nights, especially after a thunderstorm, are ideal. During dry spells, tree frogs become less active and harder to locate. Try spotlighting along pond edges using a red filter to avoid disturbing them.

How can I tell a tree frog apart from other frogs in Indiana?

Tree frogs have enlarged toe pads that allow them to climb vertical surfaces, a trait lacking in most other frogs. The Eastern Gray Tree Frog can change color from gray to green but always has a dark patch on its back. Listen for their short, melodic trill. The Spring Peeper, a small tree frog, has an X-mark on its back and a high-pitched peep. Watch for the Cope's Gray Tree Frog, which looks almost identical but has a faster call.

See our state animal guide for the next step.

What is the typical habitat of tree frogs in Indiana?

These frogs are arboreal, living in trees and shrubs near water. They prefer wooded lowlands, floodplains, and swamps. During the day, they hide under bark or in leaf litter. In winter, they burrow into soil or under logs to hibernate. Check out our Indiana wildlife guide for more on their habitat.

What do tree frog calls sound like and how can I use them to find frogs?

Male tree frogs call to attract mates. The Eastern Gray Tree Frog emits a short, nasal trill lasting about a second. The Spring Peeper’s call is a clear, high-pitched whistle. Cope’s Gray Tree Frog has a faster, lower-pitched trill. Use a frog call app or field guide to learn the sounds. Once you hear them, move slowly toward the sound using a flashlight to spot the caller.