Bull frog on lillypads

Chorus Frogs, Spring Peepers, Cricket Frogs, and Narrow-mouthed Frogs

​Chorus Frogs, Spring Peepers, Cricket Frogs, and Narrow-mouthed Frogs

​​​​​In the Chorus Frog species, adults are small and mostly under 1 1/2 inches long with moist to nearly dry skin; most of these have tiny toe pads, but they are much smaller than the toe pads found on the larger treefrogs. Plain-colored individuals of our four kinds of chorus frogs (upland, midland, mountain, and the spring peeper) can be challenging to identify.​​​​

Upland Chorus Frog​

Upland Chorus Frog

Listen to Calls of the Upland Chorus Frog

Audio recording of Upland Chorus Frog vocalizations in their natural environment. No spoken narration is included.

Identification:

  • Usually has three narrow dark stripes on the back (This is often broken up into rows of spots)
  • Breeding choruses can be heard day and night from January or February through mid-April.
  • Scattered late fall-winter calling by individual males on warm afternoons

The hopeful high-pitched trills of Upland Chorus Frogs in wet meadows and shallow pools offer the first promise of the coming spring in both the Jackson Purchase Region and in southeastern Kentucky. Eager males often start calling on sunny afternoons in January when the air temperature is only in the 40's. As the season progresses, the choruses grow much louder and the frogs can be heard both day and night. The major breeding period for chorus frogs runs through March and well into April, but by the first of May the calling males are few and far between.

The chorus frogs are among Kentucky’s smallest amphibians; full-grown males are only 1 ½ inches long and the biggest females may approach 2 inches. Even in large choruses, these frogs are surprisingly difficult to find, hiding in dense grass and leaf litter at the edge of the water with only the tip of the nose exposed. When approached, a chorus frog quickly disappears beneath the surface and hides under the water in vegetation. Adult Upland Chorus Frogs are tan to dark brown in color with three narrow stripes - sometimes broken up into rows of spots - running lengthwise down the body. Some are plain-colored and have no stripes at all.

After breeding, these chorus frogs live on land in habitats ranging from pastures and weed fields to wetland borders, low wooded areas, and even forested hillsides.

The calls of Upland and Midland Chorus Frogs are quite similar and biologists are still trying to work out ways to distinguish between them by sound. Each calling male produces a song that resembles the sound made by firmly running a thumbnail along the teeth of a hard plastic comb. In chilly weather, the calls are very slow and the individual clicks are widely spaced, but on warm nights they all seem to run together. When only a few are singing, some males call alternately in pairs or trios.

Where to Find Them:

Midland Chorus Frog​

Midland Chorus Frog

Listen to Calls of the Midland Chorus Frog

Audio recording of Midland Chorus Frog vocalizations in their natural environment. No spoken narration is included.

Identification:

  • Usually with three broad dark stripes on the back
  • Some adults are plain colored
  • Breeding choruses can be heard day and night from January or February through mid-April.
  • Scattered late fall-winter calling by individuals on warm afternoons

The hopeful high-pitched trills of Midland Chorus Frogs in wet meadows and shallow pools offer the first promise of the coming spring from the Tennessee River east to Carrollton, Hodgenville, and the Burkesville area. Eager males often start calling on sunny afternoons in January when the air temperature is only in the 40s. As the season progresses, the choruses grow much louder and the frogs can be heard both day and night. The major breeding period for chorus frogs runs through March and well into April, but by early May the calling males are few and far between.

The chorus frogs are among Kentucky’s smallest amphibians; full-grown males are only 1 ½ inches long and the biggest females may approach 2 inches. Even in large choruses, these frogs are surprisingly difficult to find, hiding in dense grass and leaf litter at the edge of the water with only the tip of the nose exposed. When approached, a chorus frog quickly disappears beneath the surface and hides under the water in vegetation. Most adults are tan to dark brown in color with three stripes - sometimes broken up into rows of spots - running lengthwise down the body. Some are plain-colored and have no stripes at all.

After breeding, these chorus frogs live on land in habitats ranging from pastures and weed fields to wetland borders, low wooded areas, and even forested hillsides.

Each calling male produces a song that resembles the sound made by firmly running a thumbnail along the teeth of a hard plastic comb; Upland Chorus Frogs have a very similar call. In chilly weather, the calls are very slow and the individual clicks are widely spaced, but on warm nights they all seem to run together. When only a few are singing some males call alternately in pairs or trios.

Where to Find Them:



  • Usually with a narrow dark X-shaped mark on the back
  • Toe pads seem slightly larger than those of the other chorus frogs
  • Some adults are plain-colored
  • Breeding choruses are heard both day and night, mostly from February through June
  • There is also scattered late fall-winter calling by individual males on warm afternoons 

  • Sometimes with a pair of broad dark outward-facing crescent markings on the back and a dark backward-facing triangle between the eyes
  • The skin often slightly granular in appearance
  • Many adults are plain-colored above
  • Small groups of males form breeding choruses in temporary pools, road ruts, and shallow ditches both day and night mostly from February through July
  • Also, occasional January calls on warm afternoons.

  • Has a tiny pointed head, short stubby legs, and a skin fold across the back just behind the eyes are distinctive
  • Breeding choruses can be heard both day and night from mid-May through August
  • Often heard calling from wet meadows following summer afternoon rains

  • This species has huge hind legs for their size, warty skin, a backward-pointing dark triangle between the eyes, alternating light and brown markings on the upper jaw, and a pair of white warts bordering the anus
  • Breeding choruses can be heard both day and night from mid-April through mid-August.

  • This species has huge hind legs for their size, warty skin, a backward-pointing dark triangle between the eyes, alternating light and brown markings on the upper jaw, and a pair of white warts bordering the anus
  • Breeding choruses can be heard both day and night from mid-April through mid-August.