ILLINOIS NATURAL HISTORY SURVEY MANUAL 4 





Silver-haired bat 



Opossum 



White-footed mouse 



Mole 



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Ra 



ccoon 



Flying squirrel 

 Fox squirrel Deer 



Gray fox 

 Mole mound Chipmunk 



Masked shrew Short-tailed shrew 



Pine vf>le 



Fig. 1. — Characteristic mammals of the unpastured Illinois forest. 



