Bullfrog

The bullfrog is the biggest frog in the DuPage forest preserves. It is green or grayish brown with spots on top and cream or white on the bottom.

• An amphibian
• 3.5 to 6 inches long
• Weighs up to 1.5 pounds
• Lives in lakes, ponds and rivers
• Eats insects, worms, snakes, rodents, shorebirds, crayfish and minnows
• Large circular eardrum on the outside of its head
• “Jug-o-rum” call

Did You Know?

You can tell the difference between a male and a female bullfrog by the shape and size of its eardrums. The bullfrog’s eardrums are located on the side of its head, next to its eyes. The male bullfrog’s eardrums are bigger than its eyes. The female’s eardrums are about the same size as its eyes.