Bullfrog Home » Departments » Parks and Recreation » Natural Area Preservation » Amphibians and Reptiles » Frogs and Toads » Bullfrog Page ContentRana catesbiana Identifying Features Locally common, has been declining in many areas. Areas with abundant submerged and emergent vegetation are preferred. Rarely use temporary waters. Tadpoles and adults bury themselves in bottom mud during hibernation. Adults may hibernate from mid-October to April or May. Love warmer weather, inactive until water temperature is above 60 degrees Fahrenheit. Call Series of bass notes, like “jug-o-rum.” Breeding Breeding usually begins in mid-May, peaks in June, and lasts into July Territorial (6-20ft. in diameter). 5,000-20,000 eggs are laid in a large free-floating mass. Development Hatch in 3-6 days. May transform in 2 years, but many take up to 3 years. Sexual maturity is 2-4 years after transformation. Conservation Note Lakeside residential developments often lead to removal of shoreline and submerged vegetation, and heavy recreational use disrupts Bullfrog reproductive activities. Heavily collected for restaurant and biological supply. Unlikely that this species can survive intense exploitation for commercial or even personal use due to the extended time needed for development, maturation, and slow population replacement rate. Habitat Type Ephemeral wetlands. Permanent wetlands. Forests. Grasslands and savannas. To a lesser extent, bullfrogs may be found in urban and agricultural areas.