© Christopher J. Leary
Wood Frog (Rana sylvatica) |
Wood frogs have a wide range of body colors, pink, tan, brown, or black, with a prominent "black mask" that extends from the front of the eye to the back of the tympanum. Dorsolateral ridges are present. The ventral side of the frog is white with a few black splotches on his chest. Body size ranges from 3.5 - 8.3 cm (1.4 - 3.25 in). Females are more brightly colored and much larger than the males. The males have swollen thumbs during the breeding season. Mating occurs over the course of only a few weeks in late winter or early spring before the ice has completely melted. About 950 eggs are laid as a loose globular mass attached to submerged vegetation in shallow water. Females often aggregate to lay their eggs in the same area. The tadpole stage lasts 40-50 days.
Calls: A series of short raspy quacks like the quack of a duck.
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