Field Guide

The Rocky Mountain toad has a number of irregular dark brown or black spots on the back and a white belly. It occurs in the Missouri River floodplain, mostly from the central to the far northwestern parts of the state.

Fowler's toad is the common toad of gravel and sand bars along our many Ozark streams and rivers. It is also the most common toad in the Bootheel lowlands.

American toads are well-known and occur statewide. Missouri has two subspecies: the Eastern American toad in the northern half, and the dwarf American toad in the southern half.

The voices of spring peepers are a true announcement that winter is ending. These small, slender frogs can be several overall colors, but seeing an X on the back is a good way to ensure your identification.

The upland chorus frog is a small gray or tan frog with dark dorsal stripes that are narrow or broken into a series of dashes or spots. In Missouri, it occurs only in the southeastern portion, including the southeastern Ozark Highlands as well as the Mississippi Alluvial Basin.

The American bullfrog is Missouri’s largest frog. This common species is easy to hear on warm nights when the males call a deep, sonorous “jug-a-rum, jug-a-rum” that can be heard from half a mile away.

The green frog looks similar to a bullfrog but is smaller and has a ridge of skin along the sides of the back that is not found on bullfrogs. It is a game animal in Missouri.

The western narrow-mouthed toad has a plump body, short legs, uniform color, small, pointed head, and a fold of skin across the back of the head. The general color is gray, tan, or olive tan. In our state is is reported from far western Missouri and east along the Missouri River as far as the center of the state.

The eastern narrow-mouthed toad is a plump little amphibian that is seldom seen. There is a fold of skin behind its narrow, pointed head. It occurs in the southern half of the state.

The plains spadefoot is a stout, toadlike amphibian with large, protruding eyes, vertically oval pupils, short legs, and large feet. There is a raised area between the eyes. It occurs in counties along the Missouri River.