Field Guide

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 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 eastern spadefoot is a stout, toadlike amphibian with large, protruding eyes, vertically oval pupils, short legs, and large feet. In Missouri, it occurs in eastern counties along the Mississippi River and in the Bootheel.

Unlike other true toads in Missouri, the Great Plains toad has a raised hump between the eyes on the snout. Look for it along the Missouri River floodplain, from the Iowa border to about Hermann.

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.

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.

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.

With its stout body and thick forearms, the rare Illinois chorus frog may at first appear more like a toad. It lives in open, sandy areas that were formerly sand prairie grasslands and wetlands of southeastern Missouri.

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.

Blanchard's cricket frog is a nonclimbing member of the treefrog family. It lacks the adhesive toe pads associated with treefrogs. It occurs statewide. The call is a metallic “gick, gick, gick.”