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Green Frog
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Green Frog

Lithobates clamitans

FrogRanidaelargeCommon
8
Observations
47
States
Jun 9, 2026
Last Recorded

Quick ID

Size5.18.9 cm
Patternblotched
Colorsgreen, olive, brown, yellow
Habitatwetland, aquatic

Field Notes

A medium to large ranid frog typically measuring 2–4.5 inches (5–11.4 cm) in length. Body is moderately robust with long, powerful hind limbs. Dorsal coloration is typically green, bronze, olive, or brown, often with scattered dark spots or mottling, though some individuals may appear nearly uniform. A key diagnostic feature is the presence of well-defined dorsolateral folds that extend from behind the eyes but terminate about halfway down the body. The head is broad with a blunt snout. The tympanum is large and distinct, often larger than the eye in males. Skin is smooth. Ventral surface is white to pale yellow, usually unmarked or with faint mottling on the throat. Commonly inhabits a wide variety of permanent freshwater habitats including ponds, lakes, marshes, and slow-moving streams, often remaining near the water’s edge. Primarily aquatic but frequently seen basking along shorelines. Diet consists of insects, crustaceans, amphibians, and other small animals.

Call is a short, explosive, metallic “plunk” or “gunk,” often compared to the sound of a loose banjo string being plucked. Calls are brief and spaced out, typically given from the water’s edge during warm months.

Similar species: American Bullfrog (Lithobates catesbeianus) is larger, lacks dorsolateral folds, and produces a deep “jug-o-rum” call; Southern Leopard Frog (Lithobates sphenocephalus) has distinct spots and full-length dorsolateral folds with a clucking call; Bronze Frog (Lithobates clamitans clamitans) is a subspecies with more uniform bronze coloration and reduced spotting.

Call

Call Recording
0:00

Photos

Click any photo to expand · Photos via iNaturalist

Seasonal Activity

JanFeb2Mar14Apr18May3JunJulAugSepOctNovDec

Individuals recorded by month

Range

Range data © iNaturalist contributors (CC BY 4.0)

Often Confused With

dorsolateral ridges and snout shape

The first thing to check is dorsolateral ridges — raised folds of skin running from behind the eye to the hind legs. American Bullfrog has NO ridges and a massive tympanum nearly as large as the eye. Green Frog has prominent ridges and is much smaller. Pig Frog also lacks ridges but has a more pointed snout and heavily webbed, reticulated hind legs — it is the bullfrog of the Deep South. River Frog is large and dark (brown to black) with white spots on the lip; no ridges; a loud snoring call. Crawfish Frog and Gopher Frog are stockier with bold round spots and low ridges — they live in burrows and upland areas rather than pond edges.

Recent Sightings

Bald Knob NWR
US-AR · White·Jun 9, 2026·jdavidglenn
×2
Bald Knob NWR
US-AR · White·Jun 8, 2026·jdavidglenn
×1
East Line Ditches
US-AR · White·May 6, 2026·jdavidglenn
×10
Cloverdale Ditch
US-AR · White·May 6, 2026·jdavidglenn
×8
East Line Ditches
US-AR · White·Apr 3, 2026·jdavidglenn
×6