Small pygmy rattlesnake.

synonyms: ground rattler, Sistrurus miliaris.

Polish: grzechotniczek karłowaty, grzechotnik karłowaty

Pygmy rattlesnake found in moist areas from the Great Lakes to Mexico; feeds on mice and small amphibians.

synonyms: massasauga rattler, Sistrurus catenatus.

Polish: grzechotnik pospolity, grzechotniczek pospolity