Ga. Feldhamer et al., RECENT RECORDS OF THE COTTON MOUSE (PEROMYSCUS-GOSSYPINUS) IN ILLINOIS, The American midland naturalist, 139(1), 1998, pp. 178-180
We document the first known occurrences of the cotton mouse (Peromyscu
s gossypinus) in Illinois since 1909. Mean kind foot length and body m
ass of cotton mice from study areas in two counties were significantly
greater than sympatric white-footed mice (P. leucopus). The cotton mi
ce occurred in forested bottomland habitat.