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Species Description- Bullfrog
Rana catesbeiana

Bullfrog
Bullfrog
Rana catesbeiana
Wyoming County, NY

Identification- 4-8"  The largest frog in our area.  Greenish yellow above.  Brown on back and legs with darker mottling throughout.  Large tympanum, no dorsolateral ridges.
    Voice- Deep resonant "jug-o-rum"
    Similar Species- Small specimens may be confused with green frog and mink frog, but both of these species have pronounced dorsolateral ridges.

Range- Found throughout the state.

Habitat- Large ponds, rivers and lakes, with weedy edges that provide cover to hide in.  Prefers slow moving or stagnant water to waters with a current.

Reproduction- Males have more yellow on throats than females.  Breeds late spring to early summer.  Eggs are attached to underwater plants.  Tadpoles large (total length=4-6"), green in color, and take up to 2 years to metmorphosize.

General Characteristics-
    Common, but Bullfrogs have low population densities.  Their "jug-o-rum" call can be heard a quarter of a mile a way on clear nights.  Highly aquatic and mostly nocturnal, Bullfrogs can be found along the edges of their habitats.  They are wary and will flee into the water or on land.  They can cover large tracts of ground quickly and easily escape.  Bullfrogs are voracious predators and eat anything that fit into their oversize mouths.  They have been known to eat small birds, rodents, snakes, along with their typical invertebrate prey.


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