Lithobates clamitans Green Frog
Lake Woodruff National Wildlife Refuge, DeLeon Springs, Volusia County, FloridaSeptember 19, 2001
Green Frog (Lithobates clamitans)
Dr. Peter May and I were slogging through foot-deep water on the main road into the Lake Woodruff NWR when we spotted this medium-sized frog on a partially submerged log. Believe it or not, I did use a tripod when I took this picture. What I didn't do was use a cable release or timer, and it was dark enough in the late afternoon flooded forest that the movement of my finger on the shutter release button was enough to turn this probably-decent picture of a frog into the blurry mess you see here.

For more about the wildlife of Lake Woodruff, check out Dr. May's web guide to this refuge.

Natchez Trace Parkway, Lewis County, TennesseeMay 9, 2004
Green Frog (Lithobates clamitans)
I was chasing a particularly hyperactive salamander around near a creek at a picnic area on the Natchez Trace Parkway, trying to get it to sit still for a photo for just five lousy seconds, when it squirmed off under a piece of driftwood. Turning the driftwood revealed this excellent frog who, unlike that darn salamander, was perfectly content to hold its pose for me.
Snake Road, La Rue-Pine Hills Ecological Area, Union County, IllinoisApril 23, 2008
Green Frog (Lithobates clamitans) Green Frog (Lithobates clamitans)
Southern Illinois and nearby areas had gotten buckets of rain recently, leading to some dramatic flooding. The effect on Snake Road was that a section perhaps a hundred feet long was a few inches underwater. That's where my wife decided to go back and wait in the car with the dogs while I soldiered on.

The shallow water across the road was frequently black with clouds of tiny tadpoles, and plenty o' frogs and toads were enjoying the extra wetlands. Among them were handsome Green Frogs like this one.

Petit Jean State Park, Conway County, ArkansasApril 19, 2011
Green Frog (Lithobates clamitans)
You can tell this is a female because her tympanum (external eardrum, essentially) is about the same size as her eye. On males the tympanum is significantly larger than the eye.
Congaree Swamp National Park, Richland County, South CarolinaApril 6, 2013
Green Frog (Lithobates clamitans)
For some reason I tend to see only one of these frogs in any particular location. This is the only one I saw at Congaree Swamp National Park.
Sesquicentennial State Park, Richland County, South CarolinaApril 8, 2013
Green Frog (Lithobates clamitans)
And this is the only one I saw at Sesquicentennial State Park.
Linn County, IowaMay 6, 2017
Green Frog (Lithobates clamitans)
The easiest way to tell Green Frogs from Bullfrogs is that Green Frogs have ridges along the sides of their backs ("dorsolateral ridges") and Bullfrogs do not. We had just seen a Bullfrog a few minutes earlier in this same pond, so I first assumed that this one was another Bullfrog, until I noticed those ridges.
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