Bullfrog

Frogs and Toads American Toad Blanchard's Cricket Frog Bullfrog Chorus Frog Gray Treefrog Green Frog Leopard Frog Pickerel Frog Spring Peeper Wood Frog

3875 E. Huron River Drive, Ann Arbor, MI 48104



[email protected]



734.794.6627

Tina Stephens,
Volunteer and Outreach Coordinator



[email protected]

Becky Hand,
Stewardship Specialist



[email protected]

Rachel Maranto,
NAP Supervisor



RMaranto@a2gov.org

Rana 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

Human use of lakeside, including construction, disrupts Bullfrog reproductive activities.
Heavily collected for restaurant and scientific supply.
Unlikely that this species can survive intense use for commercial or even personal use. This is due to the long time needed for growing, 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.

Connect with Us

Identifying Fe​atures

C​all

Bree​​ding

Dev​​elopment

Conservation No​​te

Habitat Typ​e

Identifying Features

Call

Breeding

Development

Conservation Note

Habitat Type