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American Bullfrog
Lithobates catesbeianus
41.624, -73.4014
Field Notes
Description:
Large frog that is mainly green, but mottled darker green and brown. Bullfrogs are often confused with Green Frogs as both types of frogs share many similar features. The main difference between Green Frogs and Bullfrogs is the location of the dorsolateral ridge. The dorsolateral ridge of Bullfrogs starts at the eye and hooks around the tympanum. In Green Frogs, the dorsolateral ridge runs down it's dorsal surface. Bullfrogs are also much larger than Green Frogs...This Bullfrog was nearly 5 inches long!
Habitat:
Spotted near the edge of a small woodland pond. There were several bullfrogs in the pond, as well as tadpoles. I wasn't able to catch any of the frogs because they were too fast and gave warning croaks to their buddies. The frog in this spotting was the largest one that I saw and it was bravely sitting alone like a sentinel.
Notes:
During the winter, bullfrogs burrow into the mud on the bottom of ponds and absorb oxygen stored in the mud. They remain there until spring.
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