Bullfrog (Lithobates catesbeianus)

Description: The largest true frog; no dorso-lateral skin folds; enlarged tympanum in the males nearly the size of the eye (Females tympanum is roughly half the size of the eye). Plain green dorsum; venter whitish, mottled gray, or with yellowish wash.

Call: Deep bass “jug-o-rum”

Habitat: Aquatic, preferring larger lakes, ponds, and bogs with vegetation, adjacent to rivers small home range, little or no migration between lakes/ponds.

Diet: Small fish, small birds/waterfowl, m??? other frogs, insects (dragonflies)

Size: 9-15 cm (3.5-6 in)

Natural History: Females lay up to 20,000 eggs; tadpoles live for two years before they undergo metamorphosis, then spend two to three more years before they mature. Adult bullfrogs are successful predators of small birds, young snakes, and mice. Males are highly territorial. Rival males wrestle to determine dominance. Bullfrogs have been extensively transplanted in Nebraska by the State Game and Parks Commission.

Similar species:

  1. Large size and lacks of large rounded spots on the body as seen in Northern Leopard Frog and Plains Leopard Frog.