More often heard than seen, the boreal chorus frog calls with a vibrating “prrreeep” that rises in pitch at the end. It lasts one or two seconds and sounds like someone running a fingernail over the teeth of a pocket comb. For a long time, our species was called the western chorus frog, but scientists now recognize it as a separate species.
Anaxyrus americanus americanus (formerly Bufo americanus)
The eastern American toad is medium-sized, with horizontal pupils and with a kidney-shaped gland behind each eye. Despite their rough complexion, most people find these common, harmless toads endearing.
The eastern spadefoot is a stout, toadlike amphibian with large, protruding eyes, vertically elliptical pupils, short legs, and large feet. In Missouri, it occurs in eastern counties along the Mississippi River and in the Bootheel.
MDC protects and manages Missouri's fish, forest, and wildlife resources. We also facilitate your participation in resource-management activities, and we provide opportunities for you to use, enjoy and learn about nature.