I found this most informative and interesting quote on the New York State DEC discussion about the life history and ecology of the bullfrog species that is found over the entire state.
"A bullfrog sitting on a log in the water
Bullfrog - Rana catesbiana
Did You Know?
Bullfrogs are the largest frogs in North America.
After hatching they can remain as tadpoles for one to three or more years depending on conditions.
Male bullfrogs stake out and defend their territory from any male frog intruder.
Bullfrogs can jump up to 15 times their body length to catch anything from insects, crayfish, minnows, and other frogs (even other bullfrogs) to small rodents, hatchling turtles, ducklings, bats, and snakes!
During the winter, bullfrogs burrow into the mud on the pond bottom and remain there until spring, absorbing oxygen stored in the mud. Tadpoles may be active under the ice all winter."
Jonathan