TYPICAL HABITAT: The marsh rice rat is mainly found in marshes and swamps, or along their edges. They occur in fresh, brackish, and salt marshes, but will travel into upland grasslands near water habitats, such as streams. The rats make their nests in piles of debris or grass above the high-water level. When the rats are having or raising their young, the nests seem to be more obvious.

DISTRIBUTION: The rice rats are very abundant in estuarine marshes along the Atlantic coast. They are also found in almost all of the southeastern states, but are more dominant in wet and intertidal grasslands.