The Wood Frog is often seen in local forests and comes in all shades of uniform brown. It sports a distinctive black mask along with two light colored dorsolateral folds along the back, and has darkly banded legs. Some individuals may have a light stripe running longitudinally down the back, although this characteristic is most common in the northern portion of the Wood Frog's range. Appropriately, this species spends most of its life in woodlands, and usually breeds in woodland ponds and swamps. The first to call in the spring, male Wood Frogs make their distinctive quack or cluck in March or April, often even before the ice has melted in the ponds. Large choruses are sometimes mistaken for ducks.
The breeding season for these frogs is very short, lasting only two to three weeks. The cold tolerant Wood Frog is the only species in the Western Hemisphere found north of the Arctic Circle.